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Body Parts - nouns denoting body parts

  1. A = the blood group whose red cells carry the A antigen
  2. AB = the blood group whose red cells carry both the A and B antigens / the muscles of the abdomen
  3. abdomen = the region of the body of a vertebrate between the thorax and the pelvis / the cavity containing the major viscera
  4. abdominal = the muscles of the abdomen
  5. abdominal aorta = a branch of the descending aorta
  6. abdominal cavity = the cavity containing the major viscera
  7. abdominal external oblique muscle = a diagonally arranged abdominal muscle on either side of the torso
  8. abdominal muscle = the muscles of the abdomen
  9. abdominal nerve plexus = a large plexus of sympathetic nerves in the abdomen behind the stomach
  10. abdominal wall = a wall of the abdomen
  11. abducens = a small motor nerve supplying the lateral rectus muscle of the eye
  12. abducens muscle = the ocular muscle whose contraction turns the eyeball outward
  13. abducens nerve = a small motor nerve supplying the lateral rectus muscle of the eye
  14. abducent = a small motor nerve supplying the lateral rectus muscle of the eye
  15. abducent nerve = a small motor nerve supplying the lateral rectus muscle of the eye
  16. abductor = a muscle that draws a body part away from the median line
  17. abductor muscle = a muscle that draws a body part away from the median line
  18. acanthion = the craniometric point at the anterior extremity of the intermaxillary suture
  19. acanthocyte = an abnormal red blood cell that has thorny projections of protoplasm
  20. acaryote = a cell without a nucleus
  21. accessory cephalic vein = a vein that passes along the radial edge of the forearm and joins the cephalic vein near the elbow
  22. accessory hemiazygos vein = a vein formed by the union of the 4th to 7th posterior intercostal veins
  23. accessory hemiazygous vein = a vein formed by the union of the 4th to 7th posterior intercostal veins
  24. accessory nerve = arises from two sets of roots (cranial and spinal) that unite to form the nerve
  25. accessory vertebral vein = a vein that accompanies the vertebral vein but passes through the foramen of the transverse process of the 7th cervical vertebra and empties into the brachiocephalic vein
  26. accompanying vein = a vein accompanying another structure
  27. acentric chromosome = a chromosome lacking a centromere
  28. acetabulum = the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint
  29. Achilles tendon = a large tendon that runs from the heel to the calf
  30. achromatin = the part of a cell nucleus that is relatively uncolored by stains or dyes
  31. acinus = one of the small sacs or saclike dilations in a compound gland
  32. acoustic meatus = either of the passages in the outer ear from the auricle to the tympanic membrane
  33. acoustic nerve = a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea
  34. acrocentric chromosome = a chromosome with the centromere near one end so that one chromosomal arm is short and one is long
  35. acromial process = the outermost point of the spine of the shoulder blade
  36. acromion = the outermost point of the spine of the shoulder blade
  37. acrosome = a process at the anterior end of a sperm cell that produces enzymes to facilitate penetration of the egg
  38. ACTH = a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex
  39. Adam's apple = the largest cartilage of the larynx
  40. adductor = a muscle that draws a body part toward the median line
  41. adductor muscle = a muscle that draws a body part toward the median line
  42. adenohypophysis = the anterior lobe of the pituitary body
  43. adenoid = a collection of lymphatic tissue in the throat behind the uvula
  44. ADH = hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus
  45. adhesion = a fibrous band of scar tissue that binds together normally separate anatomical structures
  46. adipose cell = cells composed of fat
  47. adipose tissue = a kind of body tissue containing stored fat that serves as a source of energy
  48. adnexa = accessory or adjoining anatomical parts or appendages to an organ
  49. adrenal = either of a pair of complex endocrine glands situated near the kidney
  50. adrenal cortex = the cortex of the adrenal gland
  51. adrenal gland = either of a pair of complex endocrine glands situated near the kidney
  52. adrenal medulla = the medulla of the adrenal gland
  53. Adrenalin = a catecholamine secreted by the adrenal medulla in response to stress
  54. adrenaline = a catecholamine secreted by the adrenal medulla in response to stress
  55. adrenocorticotrophic hormone = a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex
  56. adrenocorticotrophin = a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex
  57. adrenocorticotropic hormone = a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex
  58. adrenocorticotropin = a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex
  59. adult body = the body of an adult human being
  60. adult female body = the body of an adult woman
  61. adult male body = the body of an adult man
  62. adult tooth = any of the 32 teeth that replace the deciduous teeth of early childhood and (with luck) can last until old age
  63. adventitia = an enveloping or covering membrane or layer of body tissue
  64. afferent = a nerve that passes impulses from receptors toward or to the central nervous system
  65. afferent fiber = a nerve fiber that carries impulses toward the central nervous system
  66. afferent nerve = a nerve that passes impulses from receptors toward or to the central nervous system
  67. afferent neuron = a neuron conducting impulses inwards to the brain or spinal cord
  68. Afro = a rounded thickly curled hairdo
  69. Afro hairdo = a rounded thickly curled hairdo
  70. afterbirth = the placenta and fetal membranes that are expelled from the uterus after the baby is born
  71. agnail = a loose narrow strip of skin near the base of a fingernail
  72. agonist = a muscle that contracts while another relaxes
  73. air cell = a tiny sac for holding air in the lungs
  74. air sac = a tiny sac for holding air in the lungs
  75. airway = the passages through which air enters and leaves the body
  76. akaryocyte = a cell without a nucleus
  77. akaryote = a cell without a nucleus
  78. ala = a flat wing-shaped process or winglike part of an organism
  79. albuginea = whitish tunic
  80. alimentary canal = tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus
  81. alimentary tract = tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus
  82. alimentary tract smear = any of several cytologic smears obtained from different parts of the alimentary tract
  83. allele = either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character
  84. allelomorph = either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character
  85. allograft = tissue or organ transplanted from a donor of the same species but different genetic makeup
  86. alpha receptor = receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities
  87. alpha-adrenergic receptor = receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities
  88. alpha-adrenoceptor = receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities
  89. alveolar arch = the part of the upper or lower jawbones in which the teeth are set
  90. alveolar artery = a branch of the maxillary artery that supplies the alveolar process
  91. alveolar bed = lung tissue densely packed with alveoli
  92. alveolar point = craniometric point that is the most anterior point in the midline on the alveolar process of the maxilla
  93. alveolar process = a ridge that forms the borders of the upper and lower jaws and contains the sockets of the teeth
  94. alveolar ridge = a ridge that forms the borders of the upper and lower jaws and contains the sockets of the teeth
  95. alveolus = a bony socket in the alveolar ridge that holds a tooth / a tiny sac for holding air in the lungs
  96. ameloblast = a cell from which tooth enamel develops
  97. amnionic fluid = the serous fluid in which the embryo is suspended inside the amnion
  98. amniotic cavity = the fluid-filled cavity that surrounds the developing embryo
  99. amniotic fluid = the serous fluid in which the embryo is suspended inside the amnion
  100. ampulla = the dilated portion of a canal or duct especially of the semicircular canals of the ear
  101. amygdala = an almond-shaped neural structure in the anterior part of the temporal lobe of the cerebrum; intimately connected with the hypothalamus and the hippocampus and the cingulate gyrus
  102. amygdaloid nucleus = an almond-shaped neural structure in the anterior part of the temporal lobe of the cerebrum; intimately connected with the hypothalamus and the hippocampus and the cingulate gyrus
  103. amyloid plaque = a plaque consisting of tangles of amyloid protein in nervous tissue
  104. amyloid protein plaque = a plaque consisting of tangles of amyloid protein in nervous tissue
  105. anal sphincter = the sphincter muscle of the anus
  106. anastomosis = a natural or surgical joining of parts or branches of tubular structures so as to make or become continuous
  107. anastomotic vein = either of two communicating veins serving the brain
  108. anatomical sphincter = a ring of muscle that contracts to close an opening
  109. anatomical structure = a particular complex anatomical part of a living thing and its construction and arrangement
  110. anatomy = alternative names for the body of a human being
  111. anconeous muscle = the muscle that extends the forearm and abducts the ulna in pronation of the wrist
  112. angular artery = the terminal branch of the facial artery
  113. angular vein = a short vein formed by the supraorbital vein and the supratrochlear vein and continuing as the facial vein
  114. animal tissue = the tissue in the bodies of animals
  115. anisogamete = either of a pair of unlike gametes especially those unlike in size
  116. ankle = a gliding joint between the distal ends of the tibia and fibula and the proximal end of the talus
  117. ankle joint = a gliding joint between the distal ends of the tibia and fibula and the proximal end of the talus
  118. anklebone = the bone in the ankle that articulates with the leg bones to form the ankle joint
  119. anlage = an organ in its earliest stage of development
  120. annexa = accessory or adjoining anatomical parts or appendages to an organ
  121. annualry = the third finger
  122. ANS = the part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands
  123. antagonist = a muscle that relaxes while another contracts
  124. antagonistic muscle = a muscle that opposes the action of another
  125. anterior = a tooth situated at the front of the mouth
  126. anterior cardinal vein = a major drainage channel from the cephalic part of the body
  127. anterior cerebral artery = one of two branches of the internal carotid artery
  128. anterior cerebral vein = accompanies the anterior cerebral artery and empties into the basal vein
  129. anterior crural nerve = one of a pair of nerves that originate from lumbar nerves and supply the muscles and skin of the anterior part of the thigh
  130. anterior facial vein = a continuation of the angular vein
  131. anterior fontanelle = corresponds to the bregma when bones have ossified
  132. anterior horn = one of the two roots of a spinal nerve that passes ventrally from the spinal cord and that consists of motor fibers
  133. anterior jugular vein = arises below the chin from veins draining the lower face
  134. anterior labial veins = veins from the labia majora to the external pudendal vein
  135. anterior meningeal artery = branch of the anterior ethmoidal artery that supplies meninges in the anterior cranial fossa
  136. anterior naris = either one of the two external openings to the nasal cavity in the nose
  137. anterior pituitary = the anterior lobe of the pituitary body
  138. anterior pituitary gland = the anterior lobe of the pituitary body
  139. anterior root = one of the two roots of a spinal nerve that passes ventrally from the spinal cord and that consists of motor fibers
  140. anterior serratus muscle = muscles that rotate the scapula and elevate the rib cage
  141. anterior temporal artery = temporal artery that goes to the anterior part of the cerebral cortex of the temporal lobe
  142. anterior vertebral vein = a vein that accompanies the ascending cervical artery and opens into the vertebral vein
  143. antidiuretic hormone = hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus
  144. antiserum = blood serum containing antibodies against specific antigens
  145. antrum = a natural cavity or hollow in a bone
  146. anus = the excretory opening at the end of the alimentary canal
  147. anvil = the ossicle between the malleus and the stapes
  148. aorta = the large trunk artery that carries blood from the left ventricle of the heart to branch arteries
  149. aortic arch = the part of the aorta that arches and turns downward
  150. aortic orifice = the orifice from the lower left chamber of the heart to the aorta
  151. aortic plexus = a plexus of lymph nodes in the lower portion of the abdominal aorta
  152. aortic valve = a semilunar valve between the left ventricle and the aorta
  153. apocrine gland = a large sweat gland that produces both a fluid and an apocrine secretion
  154. aponeurosis = any of the deeper and thicker fascia that attach muscles to bones
  155. apophysis = a natural outgrowth or projection on an organ or body part such as the process of a vertebra
  156. apparatus = a group of body parts that work together to perform a given function
  157. apparatus urogenitalis = the system that includes all organs involved in reproduction and in the formation and voidance of urine
  158. appendage = a natural prolongation or projection from a part of an organism either animal or plant / an external body part that projects from the body
  159. appendicular artery = the branch of the ileocolic artery that supplies the vermiform appendix
  160. appendicular skeleton = the part of the skeleton that includes the pectoral girdle and the pelvic girdle and the upper and lower limbs
  161. appendicular vein = a vein that accompanies the appendicular artery and empties into the ileocolic vein
  162. appendix = a vestigial process that extends from the lower end of the cecum and that resembles a small pouch
  163. aqueductus cerebri = a canal connecting the third and fourth ventricles
  164. aqueous humor = the limpid fluid within the eyeball between the cornea and the lens
  165. aqueous humour = the limpid fluid within the eyeball between the cornea and the lens
  166. arachnoid = the middle of the 3 meninges
  167. arachnoid membrane = the middle of the 3 meninges
  168. arch = a curved bony structure supporting or enclosing organs
  169. archipallium = the olfactory cortex of the cerebrum
  170. arcuate artery = curved artery in the foot
  171. arcuate artery of the kidney = curved arteries of the kidney
  172. arcuate vein of the kidney = veins that receive blood from interlobular veins of kidney and rectal venules
  173. arcus = a whitish deposit in the shape of an arc that is sometimes seen in the cornea
  174. arcus senilis = a whitish deposit in the shape of an arc that is sometimes seen in the cornea
  175. arcus zygomaticus = the slender arch formed by the temporal process of the cheekbone that bridges to the zygomatic process of the temporal bone
  176. area = a part of an animal that has a special function or is supplied by a given artery or nerve
  177. area 17 of Brodmann = the part of the occipital cortex that receives the fibers of the optic radiation from the lateral geniculate body and is the primary receptive area for vision
  178. area of cardiac dullness = a triangular area of the front of the chest
  179. areola = small circular area such as that around the human nipple or an inflamed area around a pimple or insect bite / small space in a tissue or body part such as the area between veins on a leaf or an insect's wing
  180. areolar tissue = fibrous connective tissue with the fibers arranged in a mesh or net
  181. areteria cervicalis = an artery that supplies the muscles of the neck
  182. arm = a human limb
  183. arm bone = a bone in the arm
  184. armpit = the hollow under the arm where it is joined to the shoulder
  185. arse = vulgar slang for anus / the fleshy part of the human body that you sit on
  186. arsehole = vulgar slang for anus
  187. arteria = a blood vessel that carries blood from the heart to the body
  188. arteria alveolaris = a branch of the maxillary artery that supplies the alveolar process
  189. arteria alveolaris inferior = the alveolar artery that goes through the mandibular canal to supply the lower teeth
  190. arteria alveolaris superior = the alveolar artery that supplies the upper teeth
  191. arteria angularis = the terminal branch of the facial artery
  192. arteria appendicularis = the branch of the ileocolic artery that supplies the vermiform appendix
  193. arteria arcuata = curved artery in the foot
  194. arteria ascendens = the branch of the ileocolic artery that supplies the ascending colon
  195. arteria auricularis = artery that supplies blood to the ear
  196. arteria axillaris = the part of the main artery of the arm that lies in the armpit and is continuous with the subclavian artery above and the brachial artery below
  197. arteria basilaris = an unpaired artery
  198. arteria brachialis = the main artery of the upper arm; a continuation of the axillary artery
  199. arteria buccalis = a branch of the maxillary artery that supplies blood to the buccinator muscle and the cheek
  200. arteria bulbi penis = a branch of the internal pudendal artery of males that supplies the bulb of the penis
  201. arteria bulbi vestibuli = a branch of the internal pudendal artery in females that supplies the bulb of the vestibule
  202. arteria carotis = either of two major arteries of the neck and head
  203. arteria celiaca = an artery that originates from the abdominal aorta just below the diaphragm and branches into the left gastric artery and the common hepatic artery and the splenic artery
  204. arteria centralis retinae = a branch of the ophthalmic artery
  205. arteria cerebelli = an artery that supplies the cerebellum
  206. arteria cerebri = any of the arteries supplying blood to the cerebral cortex
  207. arteria choroidea = an artery that supplies the choroid plexus
  208. arteria ciliaris = one of several arteries supplying the choroid coat of the eye
  209. arteria circumflexa femoris = an artery that supplies the hip joint and thigh muscles
  210. arteria circumflexa humeri = an artery that supplies the shoulder joint and shoulder muscles
  211. arteria circumflexa ilium = an artery that supplies the lower abdominal walls and skin and the sartorius muscle
  212. arteria circumflexa scapulae = an artery that serves the muscles of the shoulder and scapular area
  213. arteria colica = arteries that supply blood to the colon
  214. arteria communicans = any of three arteries in the brain that make up the circle of Willis
  215. arteria coronaria = the artery that branches from the aorta to supply blood to the heart
  216. arteria cystica = a branch of the hepatic artery
  217. arteria digitalis = arteries in the hand and foot that supply the fingers and toes
  218. arteria epigastrica = one of three arteries supplying the anterior walls of the abdomen
  219. arteria ethmoidalis = a branch of the ophthalmic artery supplying structures in and around the nasal capsule
  220. arteria facialis = an artery that originates in the external carotid and gives off branches that supply the neck and face
  221. arteria femoralis = the chief artery of the thigh
  222. arteria gastrica = the arteries that supply the walls of the stomach
  223. arteria gastrica breves = several small arteries branching off of the splenic artery and going to the greater curvature of the stomach
  224. arteria gastrica sinistra = a branch of the celiac artery that supplies the lesser curvature of the stomach and the abdominal part of the esophagus
  225. arteria glutes = branches of the internal iliac artery that supply the hip joint and gluteal region
  226. arteria hepatica = arteries that supply the liver
  227. arteria ileocolica = an artery that originates from the superior mesenteric artery and supplies the terminal part of the ileum and the cecum and the vermiform appendix and the ascending colon
  228. arteria ileum = branch of the superior mesenteric artery that supplies the ileum
  229. arteria iliaca = one of the large arteries supplying blood to the pelvis and legs
  230. arteria iliolumbalis = an artery that originates in the internal iliac artery and supplies the pelvic muscles and bones
  231. arteria infraorbitalis = an artery that originates from the maxillary artery and supplies structures below the orbit
  232. arteria intercostalis = several arteries and supplying the intercostal spaces of the rib cage
  233. arteria labialis = an artery that is a branch of the facial artery that supplies the lips of the mouth
  234. arteria labialis inferior = an artery that is a branch of the facial artery that supplies the lower lip
  235. arteria labialis superior = an artery that is a branch of the facial artery that supplies the upper lip
  236. arteria lacrimalis = an artery that originates from the ophthalmic artery and supplies the lacrimal gland and rectal eye muscles and the upper eyelid and the forehead
  237. arteria laryngea = either of two arteries that supply blood to the larynx
  238. arteria lienalis = an artery that originates from the celiac trunk and supplies blood to the spleen
  239. arteria lingualis = an artery originating from the external carotid artery and supplying the under side of the tongue
  240. arteria lumbalis = one of four or five pairs of arteries that originate in the abdominal aorta and supply the lumbar vertebrae and the back muscles and abdominal wall
  241. arteria maxillaris = either of two arteries branching from the external carotid artery and supplying structure of the face
  242. arteria meningea = any of three arteries supplying the meninges of the brain and neighboring structures
  243. arteria mesenterica = one of two branches of the aorta that pass between the two layers of the mesentery to the intestines
  244. arteria metacarpea = dorsal and palmar arteries of the hand
  245. arteria metatarsea = dorsal and plantar arteries to the metatarsal region of the foot
  246. arteria musculophrenica = an artery that supplies the abdomen and intercostal muscles
  247. arteria nutricia = an artery that supplies the medullary cavity of the long bone
  248. arteria ophthalmica = a branch of the internal carotid artery that supplies the eye and neighboring structures
  249. arteria ovarica = the artery that branches from the aorta and supplies blood to the ovaries
  250. arteria palatina = one of several arteries supplying the face
  251. arteria pancreatica = a branch of the splenic artery that supplies the pancreas
  252. arteria perinealis = a branch of the internal pudendal artery that supplies superficial structures of the perineum
  253. arteria poplitea = a continuation of the femoral artery that branches to supply the legs and feet
  254. arteria pudenda = arteries supplying the external genital organs of humans
  255. arteria pulmonalis = one of two arteries (branches of the pulmonary trunk) that carry venous blood from the heart to the lungs
  256. arteria radialis = branch of the brachial artery beginning below the elbow and extending down the forearm around the wrist and into the palm
  257. arteria rectalis = one of the arteries supplying the rectal area
  258. arteria renalis = an artery originating from the abdominal aorta and supplying the kidneys and adrenal glands and ureters
  259. arteria subclavia = either of two arteries that supply blood to the neck and arms
  260. arteria temporalis anterior = temporal artery that goes to the anterior part of the cerebral cortex of the temporal lobe
  261. arteria temporalis intermedia = temporal artery that goes to the middle part of the cerebral cortex of the temporal lobe
  262. arteria temporalis posterior = temporal artery that supplies the posterior part of the cortex of the temporal lobe
  263. arteria testicularis = a branch of the aorta supplying the testicles
  264. arteria ulnaris = large artery that branches from the brachial artery to supply the muscles of the forearm and wrist and hand
  265. arteria uterina = a branch of the internal iliac artery that supplies the uterus and the upper part of the vagina
  266. arteria vaginalis = a branch of the internal iliac that provides blood for the vagina and the base of the bladder and the rectum
  267. arteria vertebralis = the first branch of the subclavian artery
  268. arterial blood = blood found in arteries
  269. arterial blood vessel = a blood vessel that carries blood from the heart to the body
  270. arterial plaque = a fatty deposit inside an arterial wall
  271. arteriola = one of the small thin-walled arteries that end in capillaries
  272. arteriole = one of the small thin-walled arteries that end in capillaries
  273. artery = a blood vessel that carries blood from the heart to the body
  274. artery of the labyrinth = an artery that is a branch of the basilar artery that supplies the labyrinth
  275. artery of the penis bulb = a branch of the internal pudendal artery of males that supplies the bulb of the penis
  276. artery of the vestibule bulb = a branch of the internal pudendal artery in females that supplies the bulb of the vestibule
  277. arthromere = any of the segments in the body of a jointed animal like an arthropod
  278. articular muscle = a muscle that inserts directly onto the capsule of a joint
  279. articulatio = the point of connection between two bones or elements of a skeleton
  280. articulatio coxae = the ball-and-socket joint between the head of the femur and the acetabulum
  281. articulatio cubiti = hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped
  282. articulatio genus = hinge joint in the human leg connecting the tibia and fibula with the femur and protected in front by the patella
  283. articulatio humeri = a ball-and-socket joint between the head of the humerus and a cavity of the scapula
  284. articulatio plana = a freely moving joint in which the articulations allow only gliding motions
  285. articulatio radiocarpea = a joint between the distal end of the radius and the proximal row of carpal bones
  286. articulatio spheroidea = a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
  287. articulatio synovialis = a joint so articulated as to move freely
  288. articulatio talocruralis = a gliding joint between the distal ends of the tibia and fibula and the proximal end of the talus
  289. articulatio temporomandibularis = the joint between the head of the lower jawbone and the temporal bone
  290. articulatio trochoidea = a freely moving joint in which movement is limited to rotation
  291. articulation = the point of connection between two bones or elements of a skeleton
  292. articulator = a movable speech organ
  293. articulatory system = the system of joints in the body
  294. arytaenoid = either of two small cartilages at the back of the larynx to which the vocal folds are attached
  295. arytenoid = either of two small cartilages at the back of the larynx to which the vocal folds are attached
  296. arytenoid cartilage = either of two small cartilages at the back of the larynx to which the vocal folds are attached
  297. ascending aorta = the ascending part of the aorta as it emerges from the left ventricle
  298. ascending artery = the branch of the ileocolic artery that supplies the ascending colon
  299. ascending colon = the part of the large intestine that ascends from the cecum to the transverse colon
  300. ass = the fleshy part of the human body that you sit on
  301. asshole = vulgar slang for anus
  302. association area = cortical areas that are neither motor or sensory but are thought to be involved in higher processing of information
  303. association cortex = cortical areas that are neither motor or sensory but are thought to be involved in higher processing of information
  304. aster = star-shaped structure formed in the cytoplasm of a cell having fibers like rays that surround the centrosome during mitosis
  305. asterion = the craniometric point at the junction of the lamboid suture and the occipitomastoid suture and the parietomastoid suture
  306. astragal = the bone in the ankle that articulates with the leg bones to form the ankle joint
  307. astragalus = the bone in the ankle that articulates with the leg bones to form the ankle joint
  308. astrocyte = comparatively large neuroglial cell
  309. astroglia = tissue consisting of large stellate neuroglial cells
  310. ateria gastrica dextra = a branch of the hepatic artery that supplies the pyloric portion of the stomach on the lesser curvature
  311. atheroma = a fatty deposit in the intima (inner lining) of an artery
  312. athlete's heart = enlarged heart commonly found among athletes trained for endurance
  313. atlas = the 1st cervical vertebra
  314. atlas vertebra = the 1st cervical vertebra
  315. atrial artery = the branch of the coronary artery that supplies the muscles of the atria
  316. atrial auricle = a small conical pouch projecting from the upper anterior part of each atrium of the heart
  317. atrioventricular bundle = a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract
  318. atrioventricular node = a node of specialized heart muscle located in the septal wall of the right atrium
  319. atrioventricular trunk = a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract
  320. atrioventricular valve = either of two heart valves through which blood flows from the atria to the ventricles
  321. atrium = any chamber that is connected to other chambers or passageways
  322. atrium cordis = the upper chamber of each half of the heart
  323. atrium dextrum = the right upper chamber of the heart that receives blood from the venae cavae and coronary sinus
  324. atrium of the heart = the upper chamber of each half of the heart
  325. atrium sinistrum = the left upper chamber of the heart that receives blood from the pulmonary veins
  326. attic = informal terms for a human head
  327. Attilio = a small patch of facial hair just below the lower lip and above the chin
  328. auditory apparatus = all of the components of the organ of hearing including the outer and middle and inner ears
  329. auditory area = the cortical area that receives auditory information from the medial geniculate body
  330. auditory canal = either of the passages in the outer ear from the auricle to the tympanic membrane
  331. auditory center = the part of the brain (in a fold of the cerebral cortex of the temporal lobe on both sides of the brain) that receives impulses from the ear by way of the auditory nerve
  332. auditory cortex = the cortical area that receives auditory information from the medial geniculate body
  333. auditory meatus = either of the passages in the outer ear from the auricle to the tympanic membrane
  334. auditory nerve = a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea
  335. auditory ossicle = ossicles of the middle ear that transmit acoustic vibrations from the eardrum to the inner ear
  336. auditory system = the sensory system for hearing
  337. auditory tube = either of the paired tubes connecting the middle ears to the nasopharynx
  338. auricle = the externally visible cartilaginous structure of the external ear / a small conical pouch projecting from the upper anterior part of each atrium of the heart
  339. auricula = a pouch projecting from the top front of each atrium of the heart
  340. auricula atrii = a small conical pouch projecting from the upper anterior part of each atrium of the heart
  341. auricular appendage = a pouch projecting from the top front of each atrium of the heart
  342. auricular appendix = a pouch projecting from the top front of each atrium of the heart
  343. auricular artery = artery that supplies blood to the ear
  344. auricular point = the craniometric point at the center of the opening of the external acoustic meatus
  345. auricular vein = one of two veins serving the ear region
  346. auriculare = the craniometric point at the center of the opening of the external acoustic meatus
  347. autacoid = any physiologically active internal secretion especially one of uncertain classification
  348. autocoid = any physiologically active internal secretion especially one of uncertain classification
  349. autograft = tissue that is taken from one site and grafted to another site on the same person
  350. autonomic ganglion = any of the ganglia of the autonomic system whose unmyelinated fibers innervate the internal organs
  351. autonomic nervous system = the part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands
  352. autonomic plexus = a plexus of sympathetic and parasympathetic nerve fibers
  353. autoplasty = tissue that is taken from one site and grafted to another site on the same person
  354. autosome = any chromosome that is not a sex chromosome
  355. axial muscle = a skeletal muscle of the trunk or head
  356. axial skeleton = the part of the skeleton that includes the skull and spinal column and sternum and ribs
  357. axilla = the hollow under the arm where it is joined to the shoulder
  358. axillary artery = the part of the main artery of the arm that lies in the armpit and is continuous with the subclavian artery above and the brachial artery below
  359. axillary cavity = the hollow under the arm where it is joined to the shoulder
  360. axillary fossa = the hollow under the arm where it is joined to the shoulder
  361. axillary node = any of the lymph glands of the armpit
  362. axillary vein = a continuation of the basilic vein and brachial vein that becomes the subclavian vein
  363. axis = the 2nd cervical vertebra
  364. axis vertebra = the 2nd cervical vertebra
  365. axolemma = outer membrane covering an axon
  366. axon = long nerve fiber that conducts away from the cell body of the neuron
  367. axone = long nerve fiber that conducts away from the cell body of the neuron
  368. azygos vein = one of a system of veins that drain the thoracic and abdominal walls
  369. azygous vein = one of a system of veins that drain the thoracic and abdominal walls
  370. B = the blood group whose red cells carry the B antigen
  371. B cell = a lymphocyte derived from bone marrow that provides humoral immunity
  372. B lymphocyte = a lymphocyte derived from bone marrow that provides humoral immunity
  373. baby tooth = one of the first temporary teeth of a young mammal
  374. back = the posterior part of a human (or animal) body from the neck to the end of the spine / the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
  375. back tooth = a tooth situated at the back of the mouth
  376. backbone = the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
  377. backside = the fleshy part of the human body that you sit on
  378. bacterial plaque = a film of mucus and bacteria deposited on the teeth that encourages the development of dental caries
  379. ball = one of the two male reproductive glands that produce spermatozoa and secrete androgens / a more or less rounded anatomical body or mass
  380. ball-and-socket joint = a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
  381. ballock = one of the two male reproductive glands that produce spermatozoa and secrete androgens
  382. band = a cord-like tissue connecting two larger parts of an anatomical structure
  383. bandy leg = a leg bowed outward at the knee
  384. bandyleg = a leg bowed outward at the knee
  385. bang = a border of hair that is cut short and hangs across the forehead
  386. bare bone = bone stripped of flesh
  387. baroreceptor = a sensory receptor that responds to pressure
  388. Bartholin's gland = either of the two posterior vestibular glands that secrete a lubricating mucus
  389. basal ganglion = any of several masses of subcortical grey matter at the base of each cerebral hemisphere that seem to be involved in the regulation of voluntary movement
  390. basal vein = a large vein passing along the medial surface of the temporal lobe and emptying into the great cerebral vein
  391. basilar artery = an unpaired artery
  392. basilar membrane = a membrane in the cochlea that supports the organ of Corti
  393. basilic vein = a vein that drains the back of the hand and forearm and empties into the axillary vein
  394. basivertebral vein = one of a number of veins draining the spongy substance of the vertebrae and emptying into the anterior internal vertebral venous plexus
  395. basophil = a leukocyte with basophilic granules easily stained by basic stains
  396. basophile = a leukocyte with basophilic granules easily stained by basic stains
  397. bay window = slang for a paunch
  398. beak = informal terms for the nose
  399. bean = informal terms for a human head
  400. beard = the hair growing on the lower part of a man's face
  401. beaver = a full beard
  402. beehive = a hairdo resembling a beehive
  403. behind = the fleshy part of the human body that you sit on
  404. belly = a protruding abdomen / the region of the body of a vertebrate between the thorax and the pelvis
  405. belly button = a scar where the umbilical cord was attached
  406. bellybutton = a scar where the umbilical cord was attached
  407. beta cell = a cell that produces insulin in the isles of Langerhans in the pancreas
  408. beta receptor = receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities
  409. beta-adrenergic receptor = receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities
  410. beta-adrenoceptor = receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities
  411. betweenbrain = the posterior division of the forebrain
  412. biauriculate heart = a heart (as of mammals and birds and reptiles) having two auricles
  413. biceps = any skeletal muscle having two origins
  414. biceps brachii = a muscle that flexes and supinates the forearm
  415. biceps humeri = a muscle that flexes and supinates the forearm
  416. bicuspid = a tooth having two cusps or points
  417. bicuspid valve = valve with two cusps
  418. big toe = the first largest innermost toe
  419. bile = a digestive juice secreted by the liver and stored in the gallbladder
  420. bile duct = a duct formed by the hepatic and cystic ducts
  421. biliary ductule = excretory ducts of the liver
  422. birth canal = a passage in the uterus and vagina through which a fetus passes during vaginal birth
  423. black bile = a humor that was once believed to be secreted by the kidneys or spleen and to cause sadness and melancholy
  424. blackhead = a black-tipped plug clogging a pore of the skin
  425. bladder = a distensible membranous sac
  426. bladder sphincter = the sphincter muscle of the urinary bladder
  427. blade = a broad flat body part
  428. blastema = a mass of undifferentiated cells from which an organ or body part develops
  429. blastocyte = an undifferentiated embryonic cell
  430. bleb = an elevation of the skin filled with serous fluid
  431. blind gut = the cavity in which the large intestine begins and into which the ileum opens
  432. blind spot = the point where the optic nerve enters the retina
  433. blister = an elevation of the skin filled with serous fluid
  434. blood = the fluid (red in vertebrates) that is pumped through the body by the heart and contains plasma, blood cells, and platelets
  435. blood cell = either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets
  436. blood clot = a semisolid mass of coagulated red and white blood cells
  437. blood corpuscle = either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets
  438. blood group = human blood cells (usually just the red blood cells) that have the same antigens
  439. blood plasma = the colorless watery fluid of the blood and lymph that contains no cells, but in which the blood cells (erythrocytes, leukocytes, and thrombocytes) are suspended
  440. blood serum = an amber, watery fluid, rich in proteins, that separates out when blood coagulates
  441. blood stream = the blood flowing through the circulatory system
  442. blood type = human blood cells (usually just the red blood cells) that have the same antigens
  443. blood vessel = a vessel in which blood circulates
  444. bloodstream = the blood flowing through the circulatory system
  445. blowhole = the spiracle of a cetacean located far back on the skull
  446. bob = a hair style for women and children
  447. bod = alternative names for the body of a human being
  448. bodily cavity = a natural hollow or sinus within the body
  449. bodily fluid = the liquid parts of the body
  450. bodily structure = a particular complex anatomical part of a living thing and its construction and arrangement
  451. body = the entire physical structure of an organism (an animal, plant, or human being) / a natural object consisting of a dead animal or person / the body excluding the head and neck and limbs
  452. body covering = any covering for the body or a body part
  453. body fluid = the liquid parts of the body
  454. body hair = short hair growing over a person's body
  455. body part = any part of an organism such as an organ or extremity
  456. body structure = a particular complex anatomical part of a living thing and its construction and arrangement
  457. body substance = the substance of the body
  458. bollock = one of the two male reproductive glands that produce spermatozoa and secrete androgens
  459. bonce = informal terms for a human head
  460. bone = rigid connective tissue that makes up the skeleton of vertebrates
  461. bone cell = a cell that is part of a bone
  462. bone marrow = the fatty network of connective tissue that fills the cavities of bones
  463. bone-forming cell = a cell from which bone develops
  464. bonelet = a small bone
  465. bony labyrinth = cavity in the petrous part of the temporal bone that contains the membranous labyrinth
  466. boob = either of two soft fleshy milk-secreting glandular organs on the chest of a woman
  467. booger = dried nasal mucus
  468. book lung = organ in many arachnids containing many thin folds of membrane resembling the leaves of a book
  469. bosom = a person's breast or chest / either of two soft fleshy milk-secreting glandular organs on the chest of a woman
  470. bottom = the fleshy part of the human body that you sit on
  471. bouffant = a woman's hairstyle in which the hair gives a puffy appearance
  472. bow leg = a leg bowed outward at the knee
  473. bowel = the part of the alimentary canal between the stomach and the anus
  474. bowleg = a leg bowed outward at the knee
  475. Bowman's capsule = thin double membrane surrounding the glomerulus of a nephron
  476. brachial artery = the main artery of the upper arm; a continuation of the axillary artery
  477. brachial plexus = a network of nerves formed by cervical and thoracic spinal nerves and supplying the arm and parts of the shoulder
  478. brachial vein = two veins in either arm that accompany the brachial artery and empty into the axillary vein
  479. brachiocephalic vein = veins formed by the union of the internal jugular and subclavian veins
  480. braid = a hairdo formed by braiding or twisting the hair
  481. brain = that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull
  482. brain cell = a nerve cell in the brain
  483. brain stem = the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
  484. brain-stem = the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
  485. braincase = the part of the skull that encloses the brain
  486. brainpan = the part of the skull that encloses the brain
  487. brainstem = the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
  488. breadbasket = an enlarged and muscular saclike organ of the alimentary canal
  489. breast = the front of the trunk from the neck to the abdomen / either of two soft fleshy milk-secreting glandular organs on the chest of a woman
  490. breastbone = the flat bone that articulates with the clavicles and the first seven pairs of ribs
  491. bregma = the craniometric point at the junction of the sagittal and coronal sutures at the top of the cranium
  492. bridge = the hard ridge that forms the upper part of the nose
  493. Broca's area = the motor speech center in the left hemisphere of the brain in most people
  494. Broca's center = the motor speech center in the left hemisphere of the brain in most people
  495. Broca's convolution = the motor speech center in the left hemisphere of the brain in most people
  496. Broca's gyrus = the motor speech center in the left hemisphere of the brain in most people
  497. Brodmann's area = one of the cortical areas mapped out on the basis of its cytoarchitecture
  498. Brodmann's area 17 = the part of the occipital cortex that receives the fibers of the optic radiation from the lateral geniculate body and is the primary receptive area for vision
  499. bronchial artery = arteries that accompany the bronchioles
  500. bronchial tube = either of the two main branches of the trachea
  501. bronchial vein = veins serving the bronchi
  502. bronchiole = any of the smallest bronchial ducts
  503. bronchoscopic smear = any of several cytologic smears obtained from different parts of the lower respiratory tract
  504. bronchus = either of the two main branches of the trachea
  505. brow = the arch of hair above each eye / the part of the face above the eyes
  506. brush cut = a short haircut with hairs standing up like a brush
  507. buccal artery = a branch of the maxillary artery that supplies blood to the buccinator muscle and the cheek
  508. buccal cavity = the cavity between the jaws and the cheeks
  509. buccinator muscle = a muscle that flattens the cheek and retracts the angle of the mouth
  510. buccula = a fold of fatty tissue under the chin
  511. bucktooth = a large projecting front tooth
  512. buff = bare skin
  513. build = alternative names for the body of a human being
  514. bulb = a rounded dilation or expansion in a canal or vessel or organ / lower or hindmost part of the brain; continuous with spinal cord
  515. bulbar conjunctiva = the part of the conjunctiva covering the anterior face of the sclera and the surface epithelium of the cornea
  516. bulbourethral gland = either of two glands that discharge a component of seminal fluid into the urethra
  517. bull neck = a thick short powerful neck
  518. bulla = an elevation of the skin filled with serous fluid
  519. bullethead = a head shaped like a bullet
  520. bum = the fleshy part of the human body that you sit on
  521. bundle of His = a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract
  522. bunghole = vulgar slang for anus
  523. buns = the fleshy part of the human body that you sit on
  524. burnside = facial hair that has grown down the side of a man's face in front of the ears
  525. bursa = a small fluid-filled sac located between movable parts of the body especially at joints
  526. bursa omentalis = an isolated part of the peritoneal cavity that is dorsal to the stomach
  527. bush = hair growing in the pubic area
  528. bust = the chest of a woman
  529. butch = a closely cropped haircut
  530. butt = the fleshy part of the human body that you sit on
  531. buttock = either of the two large fleshy masses of muscular tissue that form the human rump
  532. buttocks = the fleshy part of the human body that you sit on
  533. button = a female sexual organ homologous to the penis
  534. bypass = a surgically created shunt
  535. cadaver = the dead body of a human being
  536. caecum = the cavity in which the large intestine begins and into which the ileum opens
  537. cakehole = informal terms for the mouth
  538. calcaneus = the largest tarsal bone
  539. calcarine fissure = a sulcus in the mesial surface of the occipital lobe of the cerebrum
  540. calcarine sulcus = a sulcus in the mesial surface of the occipital lobe of the cerebrum
  541. calcitonin = thyroid hormone that tends to lower the level of calcium in the blood plasma and inhibit resorption of bone
  542. calf = the muscular back part of the shank
  543. calf bone = the outer and thinner of the two bones of the human leg between the knee and ankle
  544. calvaria = the dome of the skull
  545. cambium = the inner layer of the periosteum
  546. can = the fleshy part of the human body that you sit on
  547. canal = a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
  548. canal of Schlemm = a circular canal in the eye that drains aqueous humor from the anterior chamber of the eye into the anterior ciliary veins
  549. canaliculus = a small canal or duct as in some bones and parts of plants
  550. canalis cervicis uteri = a spindle-shaped canal extending from the uterus to the vagina
  551. canalis inguinalis = oblique passage through the lower abdominal wall; in males it is the passage through which the testes descend into the scrotum and it contains the spermatic cord
  552. canalis vertebralis = the canal in successive vertebrae through which the spinal cord passes
  553. cancer cell = a cell that is part of a malignant tumor
  554. cancer juice = a milky substance found in certain cancerous growths
  555. canine = one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars
  556. canine tooth = one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars
  557. canthus = either of the corners of the eye where the upper and lower eyelids meet
  558. capillary = any of the minute blood vessels connecting arterioles with venules
  559. capillary artery = one of the small thin-walled arteries that end in capillaries
  560. capillary bed = a layer of tissue densely packed with capillaries
  561. capillary vein = a minute vein continuous with a capillary
  562. capillary vessel = any of the minute blood vessels connecting arterioles with venules
  563. capitate = the wrist bone with a rounded head shape that articulates with the 3rd metacarpus
  564. capitate bone = the wrist bone with a rounded head shape that articulates with the 3rd metacarpus
  565. capsula glomeruli = thin double membrane surrounding the glomerulus of a nephron
  566. capsule = a structure that encloses a body part
  567. caput = the upper part of the human body or the front part of the body in animals
  568. cardia = the opening into the stomach and that part of the stomach connected to the esophagus
  569. cardiac muscle = the muscle tissue of the heart
  570. cardiac pacemaker = a specialized bit of heart tissue that controls the heartbeat
  571. cardiac plexus = a plexus of nerves supplying the heart and nearby structures
  572. cardiac sphincter = the valve between the distal end of the esophagus and the stomach
  573. cardiac valve = a valve to control one-way flow of blood
  574. cardinal vein = any of the major venous channels in primitive adult vertebrates and in embryos of higher vertebrates
  575. cardiovascular system = the organs and tissues involved in circulating blood and lymph through the body
  576. carina = any of various keel-shaped structures or ridges such as that on the breastbone of a bird or that formed by the fused petals of a pea blossom
  577. carina fornicis = ridge on the lower surface of the fornix of the brain
  578. carnassial tooth = the last upper premolar and first lower molar teeth of a carnivore
  579. carotid artery = either of two major arteries of the neck and head
  580. carotid body = a chemoreceptor located near the bifurcations of the carotid arteries
  581. carotid plexus = a plexus of nerves surrounding the internal carotid artery
  582. carpal = any of the eight small bones of the wrist of primates
  583. carpal bone = any of the eight small bones of the wrist of primates
  584. carpal tunnel = a passageway in the wrist through which nerves and the flexor muscles of the hands pass
  585. carpus = a joint between the distal end of the radius and the proximal row of carpal bones
  586. cartilage = tough elastic tissue
  587. cartilage bone = any bone that develops within cartilage rather than a fibrous tissue
  588. cartilaginous structure = body structure given shape by cartilage
  589. cartilaginous tube = a duct with cartilaginous walls
  590. caruncle = an outgrowth on a plant or animal such as a fowl's wattle or a protuberance near the hilum of certain seeds
  591. caruncula = an outgrowth on a plant or animal such as a fowl's wattle or a protuberance near the hilum of certain seeds
  592. case = an enveloping structure or covering enclosing an animal or plant organ or part
  593. cauda = any taillike structure
  594. caudal vertebra = one of 4 vertebrae in the human coccyx
  595. caudate = a tail-shaped basal ganglion located in a lateral ventricle of the brain
  596. caudate nucleus = a tail-shaped basal ganglion located in a lateral ventricle of the brain
  597. caul = the inner membrane of embryos in higher vertebrates (especially when covering the head at birth) / part of the peritoneum attached to the stomach and to the colon and covering the intestines
  598. cauliflower ear = an auricle deformed by injury
  599. cavernous sinus = either of a pair of large venous sinuses in the cranial cavity
  600. cavity = a natural hollow or sinus within the body
  601. cavum = a natural hollow or sinus within the body
  602. CD4 cell = T cell with CD4 receptor that recognizes antigens on the surface of a virus-infected cell and secretes lymphokines that stimulate B cells and killer T cells
  603. CD4 T cell = T cell with CD4 receptor that recognizes antigens on the surface of a virus-infected cell and secretes lymphokines that stimulate B cells and killer T cells
  604. CD8 cell = T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it
  605. CD8 T cell = T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it
  606. cecal appendage = a vestigial process that extends from the lower end of the cecum and that resembles a small pouch
  607. cecum = the cavity in which the large intestine begins and into which the ileum opens
  608. celiac artery = an artery that originates from the abdominal aorta just below the diaphragm and branches into the left gastric artery and the common hepatic artery and the splenic artery
  609. celiac trunk = an artery that originates from the abdominal aorta just below the diaphragm and branches into the left gastric artery and the common hepatic artery and the splenic artery
  610. cell membrane = a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell
  611. cell nucleus = a part of the cell containing DNA and RNA and responsible for growth and reproduction
  612. cell organ = a specialized part of a cell
  613. cell organelle = a specialized part of a cell
  614. cellulite = lumpy deposits of body fat especially on women's thighs etc.
  615. celom = a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity
  616. celoma = a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity
  617. cement = a specialized bony substance covering the root of a tooth
  618. cementum = a specialized bony substance covering the root of a tooth
  619. center = a cluster of nerve cells governing a specific bodily process
  620. central artery of the retina = a branch of the ophthalmic artery
  621. central body = small region of cytoplasm adjacent to the nucleus
  622. central gyrus = either of two gyri on either side of the central sulcus
  623. central nervous system = the portion of the vertebrate nervous system consisting of the brain and spinal cord
  624. central sulcus = a brain fissure extending upward on the lateral surface of both hemispheres
  625. central vein of retina = vein formed by the union of the retinal veins
  626. central vein of suprarenal gland = a single draining vein; on the right it empties into the inferior vena cava
  627. central veins of liver = terminal branches of the hepatic veins that lie in the hepatic lobules and receive blood from the liver sinusoids
  628. centre = a cluster of nerve cells governing a specific bodily process
  629. centriole = one of a pair of small cylindrical cell organelles near the nucleus in animal cells
  630. centromere = a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape
  631. centrosome = small region of cytoplasm adjacent to the nucleus
  632. centrum = the main body of a vertebra
  633. cephalic vein = a large vein of the arm that empties into the axillary vein
  634. cerebellar artery = an artery that supplies the cerebellum
  635. cerebellar hemisphere = either of two lateral lobes of the cerebellum
  636. cerebellar vein = the veins draining the cerebellum
  637. cerebellum = a major division of the vertebrate brain
  638. cerebral aqueduct = a canal connecting the third and fourth ventricles
  639. cerebral artery = any of the arteries supplying blood to the cerebral cortex
  640. cerebral cortex = the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
  641. cerebral hemisphere = either half of the cerebrum
  642. cerebral mantle = the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
  643. cerebral peduncle = a bundle of myelinated neurons joining different parts of the brain
  644. cerebral vein = any of several veins serving the cerebral hemispheres of the brain
  645. cerebrospinal fluid = clear liquid produced in the ventricles of the brain
  646. cerebrum = anterior portion of the brain consisting of two hemispheres
  647. cervical artery = an artery that supplies the muscles of the neck
  648. cervical canal = a spindle-shaped canal extending from the uterus to the vagina
  649. cervical glands = mucus-secreting glands in the mucosa of the uterine cervix
  650. cervical glands of the uterus = mucus-secreting glands in the mucosa of the uterine cervix
  651. cervical nerve = any of eight pairs of spinal nerves emerging from the cervical section of the spinal cord
  652. cervical plexus = a nerve plexus lying beneath the sternocleidomastoid muscle
  653. cervical smear = a sample of secretions and superficial cells of the uterine cervix and uterus
  654. cervical vein = a vein that accompanies an artery of the same name
  655. cervical vertebra = one of 7 vertebrae in the human spine located in the neck region
  656. cervix = necklike opening to the uterus / the part of an organism (human or animal) that connects the head to the rest of the body
  657. cervix uteri = necklike opening to the uterus
  658. CFTR = the gene that is mutated in cystic fibrosis
  659. chamber = an enclosed volume in the body
  660. channel = a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
  661. chassis = alternative names for the body of a human being
  662. cheek = either of the two large fleshy masses of muscular tissue that form the human rump / either side of the face below the eyes
  663. cheek muscle = a muscle that flattens the cheek and retracts the angle of the mouth
  664. cheek pouch = a membranous pouch inside the mouth of many rodents
  665. cheekbone = the arch of bone beneath the eye that forms the prominence of the cheek
  666. chemoreceptor = a sensory receptor that responds to chemical stimuli
  667. chest = the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates / the front of the trunk from the neck to the abdomen
  668. chest cavity = the cavity in the vertebrate body enclosed by the ribs between the diaphragm and the neck and containing the lungs and heart
  669. chiasm = an intersection or crossing of two tracts in the form of the letter X
  670. chiasma = an intersection or crossing of two tracts in the form of the letter X
  671. chiasma opticum = the crossing of the optic nerves from the two eyes at the base of the brain
  672. chignon = a roll of hair worn at the nape of the neck
  673. child's body = the body of a human child
  674. chin = the protruding part of the lower jaw
  675. cholecystokinin = a gastrointestinal hormone that stimulates the secretion of pancreatic enzymes and the contraction and emptying of the gall bladder
  676. choler = a humor that was once believed to be secreted by the liver and to cause irritability and anger
  677. chondriosome = an organelle containing enzymes responsible for producing energy
  678. chop = a jaw
  679. chopper = informal terms for a human `tooth'
  680. choroid = a highly vascular membrane in the eye between the retina and the sclera
  681. choroid coat = a highly vascular membrane in the eye between the retina and the sclera
  682. choroid plexus = a vascular plexus of the cerebral ventricles that regulate intraventricular pressure
  683. choroid vein = either of two veins serving the choroid coat of the eye
  684. choroidal artery = an artery that supplies the choroid plexus
  685. chromatid = one of two identical strands into which a chromosome splits during mitosis
  686. chromatin = the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins
  687. chromatin granule = the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins
  688. chromosome = a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order
  689. chyle = a milky fluid consisting of lymph and emulsified fats
  690. ciliary artery = one of several arteries supplying the choroid coat of the eye
  691. ciliary body = the part of the tunic of the eye between the choroid coat and the iris
  692. ciliary veins = small veins coming from the ciliary body
  693. cilium = any of the short curved hairs that grow from the edges of the eyelids
  694. cingulate gyrus = a long curved structure on the medial surface of the cerebral hemispheres
  695. cingulum = an encircling structure
  696. circle of Willis = a ring of arteries at the base of the brain
  697. circulatory system = the organs and tissues involved in circulating blood and lymph through the body
  698. circumflex artery = any of several paired curving arteries
  699. circumflex artery of the thigh = an artery that supplies the hip joint and thigh muscles
  700. circumflex femoral vein = either of two veins that accompany arteries of the same name serving the hip and thigh
  701. circumflex humeral artery = an artery that supplies the shoulder joint and shoulder muscles
  702. circumflex iliac artery = an artery that supplies the lower abdominal walls and skin and the sartorius muscle
  703. circumflex iliac vein = accompanies the artery of the same name
  704. circumflex scapular artery = an artery that serves the muscles of the shoulder and scapular area
  705. circumflex vein = any of several curved parallel veins accompanying arteries of the same name
  706. cistern = a sac or cavity containing fluid especially lymph or cerebrospinal fluid
  707. cisterna = a sac or cavity containing fluid especially lymph or cerebrospinal fluid
  708. cistron = a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons
  709. clapper = a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity
  710. claustrum = a layer of grey matter in the brain adjacent to the lenticular nucleus
  711. clavicle = bone linking the scapula and sternum
  712. clay = the dead body of a human being
  713. cleavage = the line formed by a groove between two parts
  714. clenched fist = a hand with the fingers clenched in the palm
  715. clit = a female sexual organ homologous to the penis
  716. clitoral vein = veins that serve the clitoris
  717. clitoris = a female sexual organ homologous to the penis
  718. cloaca = the cavity (in birds, reptiles, amphibians, most fish, and monotremes but not mammals) at the end of the digestive tract into which the intestinal, genital, and urinary tracts open
  719. clot = a lump of material formed from the content of a liquid
  720. CNS = the portion of the vertebrate nervous system consisting of the brain and spinal cord
  721. coagulum = a lump of material formed from the content of a liquid
  722. cobblers = a man's testicles
  723. coccygeal nerve = the lowest pair of spinal nerves
  724. coccygeal plexus = a small plexus formed by the fifth sacral and coccygeal nerves
  725. coccygeal vertebra = one of 4 vertebrae in the human coccyx
  726. coccyx = the end of the vertebral column in humans and tailless apes
  727. cochlea = the snail-shaped tube (in the inner ear coiled around the modiolus) where sound vibrations are converted into nerve impulses by the organ of Corti
  728. cock = obscene terms for penis
  729. coeliac plexus = a large plexus of sympathetic nerves in the abdomen behind the stomach
  730. coelom = a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity
  731. coif = the arrangement of the hair
  732. coiffure = the arrangement of the hair
  733. colic artery = arteries that supply blood to the colon
  734. colic vein = vein serving the large intestine
  735. collagen = a fibrous scleroprotein in bone and cartilage and tendon and other connective tissue
  736. collarbone = bone linking the scapula and sternum
  737. colon = the part of the large intestine between the cecum and the rectum
  738. colostrum = milky fluid secreted for the first day or two after parturition
  739. column = any tubular or pillar-like supporting structure in the body
  740. columnar cell = an epithelial cell that is shaped like a column
  741. columnar epithelial cell = an epithelial cell that is shaped like a column
  742. come = the thick white fluid containing spermatozoa that is ejaculated by the male genital tract
  743. comedo = a black-tipped plug clogging a pore of the skin
  744. commissure = a bundle of nerve fibers passing from one side to the other of the brain or spinal cord
  745. common bile duct = a duct formed by the hepatic and cystic ducts
  746. common cardinal vein = the major return channels to the heart
  747. common carotid = runs upward in the neck and divides into the external and internal carotid arteries
  748. common carotid artery = runs upward in the neck and divides into the external and internal carotid arteries
  749. common facial vein = vein formed by union of facial vein and the retromandibular vein and emptying into the jugular vein
  750. common iliac artery = terminal branches of the abdominal aorta
  751. common iliac vein = formed by the internal and external iliac veins
  752. communicating artery = any of three arteries in the brain that make up the circle of Willis
  753. complex body part = a particular complex anatomical part of a living thing and its construction and arrangement
  754. compound eye = in insects and some crustaceans: composed of many light-sensitive elements each forming a portion of an image
  755. concha = a structure that resembles a shell in shape
  756. condylar process = the condyle of the ramus of the mandible that articulates with the skull
  757. condyle = a round bump on a bone where it forms a joint with another bone
  758. condylion = the craniometric point at the tip of the mandibular condyle
  759. condyloid process = the condyle of the ramus of the mandible that articulates with the skull
  760. cone = a visual receptor cell in the retina that is sensitive to bright light and to color
  761. cone cell = a visual receptor cell in the retina that is sensitive to bright light and to color
  762. conjunctiva = a transparent lubricating mucous membrane that covers the eyeball and the under surface of the eyelid
  763. conjunctival layer of bulb = the part of the conjunctiva covering the anterior face of the sclera and the surface epithelium of the cornea
  764. conjunctival layer of eyelids = the part of the conjunctiva lining the posterior surface of the eyelids
  765. conjunctival veins = veins draining the conjunctiva
  766. conk = informal term for the nose
  767. connective tissue = tissue of mesodermal origin consisting of e.g. collagen fibroblasts and fatty cells
  768. contractile organ = a bodily organ that contracts
  769. contractor = a bodily organ that contracts
  770. convolution = a convex fold or elevation in the surface of the brain
  771. convolution of Broca = the motor speech center in the left hemisphere of the brain in most people
  772. cord blood = blood obtained from the umbilical cord at birth
  773. corium = the deep vascular inner layer of the skin
  774. cornea = the transparent dome-shaped anterior portion of the outer covering of the eye
  775. corneum = the outermost layer of the epidermis consisting of dead cells that slough off
  776. cornu = any structure that resembles a horn in shape
  777. corona = any structure that resembles a crown in shape
  778. coronal suture = the suture between the parietal and frontal bones of the skull
  779. coronary artery = the artery that branches from the aorta to supply blood to the heart
  780. coronary sinus = a short sinus receiving most of the veins of the heart
  781. coronion = the craniometric point at the tip of the coronoid process of the mandible
  782. coronoid process = a sharp triangular process projecting from a bone
  783. coronoid process of the mandible = the coronoid process that provides an attachment for the temporal muscle
  784. corporation = slang for a paunch
  785. corpse = the dead body of a human being
  786. corpus = the main part of an organ or other bodily structure
  787. corpus amygdaloideum = an almond-shaped neural structure in the anterior part of the temporal lobe of the cerebrum; intimately connected with the hypothalamus and the hippocampus and the cingulate gyrus
  788. corpus callosum = a broad transverse nerve tract connecting the two cerebral hemispheres
  789. corpus geniculatum laterale = a neural structure that serves as a processing station on the way from the retina to the occipital lobe of the cerebral cortex
  790. corpus geniculatum mediale = a neural structure that serves as the last of a series of processing centers along the auditory pathway from the cochlea to the temporal lobe of the cerebral cortex
  791. corpus luteum = yellow endocrine tissue that forms in a ruptured Graafian follicle following the release of an ovum
  792. corpus mamillare = one of two small round structures on the undersurface of the brain that form the terminals of the anterior arches of the fornix
  793. corpus sternum = the large central part of the breastbone
  794. corpus striatum = a striped mass of white and grey matter located in front of the thalamus in each cerebral hemisphere
  795. corpuscle = either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets
  796. cortex = the tissue that surrounds the lens nucleus / the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum / the tissue forming the outer layer of an organ or structure in plant or animal
  797. cortical area = any of various regions of the cerebral cortex
  798. cortical region = any of various regions of the cerebral cortex
  799. corticospinal tract = any of the important motor nerves on each side of the central nervous system that run from the sensorimotor areas of the cortex through the brainstem to motor neurons of the cranial nerve nuclei and the ventral root of the spinal cord
  800. corticotrophin = a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex
  801. corticotropin = a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex
  802. costa = any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates) / a riblike part of a plant or animal
  803. costal cartilage = the cartilages that connect the sternum and the ends of the ribs
  804. costal groove = groove between the ribs where the nerves and blood vessels are
  805. costoaxillary vein = one of several veins connecting intercostal veins with the lateral thoracic vein or the thoracoepigastric vein
  806. cotyloid cavity = the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint
  807. cotyloid joint = a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
  808. countenance = the human face
  809. cowl muscle = either of two flat triangular muscles of the shoulder and upper back that are involved in moving the shoulders and arms
  810. cowlick = a tuft of hair that grows in a different direction from the rest of the hair and usually will not lie flat
  811. Cowper's gland = either of two glands that discharge a component of seminal fluid into the urethra
  812. coxa = the ball-and-socket joint between the head of the femur and the acetabulum
  813. cranial cavity = the cavity enclosed by the cranium
  814. cranial nerve = any of the 12 paired nerves that originate in the brain stem
  815. cranial orbit = the bony cavity in the skull containing the eyeball
  816. craniometric point = a landmark on the skull from which craniometric measurements can be taken
  817. cranium = the part of the skull that encloses the brain
  818. crazy bone = a point on the elbow where the ulnar nerve passes near the surface
  819. cremains = the remains of a dead body after cremation
  820. crew cut = a closely cropped haircut
  821. crimp = a lock of hair that has been artificially waved or curled
  822. crotaphion = the tip of the greater wing of the sphenoid bone
  823. crotch = external sex organ / the angle formed by the inner sides of the legs where they join the human trunk
  824. crotch hair = hair growing in the pubic area
  825. crown = the part of a tooth above the gum that is covered with enamel / the top of the head
  826. crus = the leg from the knee to foot
  827. crystalline lens = biconvex transparent body situated behind the iris in the eye
  828. cubital joint = hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped
  829. cubital nerve = a nerve running along the inner side of the arm and passing near the elbow
  830. cubitus = the arm from the elbow to the fingertips / hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped
  831. cuboid bone = the cube shaped bone on the outer side of the tarsus
  832. cuboidal cell = an epithelial cell that shaped like a cube
  833. cuboidal epithelial cell = an epithelial cell that shaped like a cube
  834. cum = the thick white fluid containing spermatozoa that is ejaculated by the male genital tract
  835. cuneiform bone = a wrist bone that articulates with the pisiform and hamate and lunate bones
  836. cunt = obscene terms for female genitals
  837. curl = a strand or cluster of hair
  838. cusp = small elevation on the grinding surface of a tooth / a thin triangular flap of a heart valve
  839. cuspid = one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars
  840. cutaneous vein = one of a number of veins in the subcutaneous tissue that empty into deep veins
  841. cuticle = the outer layer of the skin covering the exterior body surface of vertebrates / the dead skin at the base of a fingernail or toenail
  842. cutis = a natural protective body covering and site of the sense of touch
  843. cyst = a small anatomically normal sac or bladderlike structure
  844. cystic artery = a branch of the hepatic artery
  845. cystic fibrosis transport regulator = the gene that is mutated in cystic fibrosis
  846. cystic vein = vein that drains the gallbladder
  847. cytol = the protoplasm of a cell excluding the nucleus
  848. cytologic smear = a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope
  849. cytologic specimen = a specimen used for cytologic examination and diagnosis
  850. cytomembrane = a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell
  851. cytoplasm = the protoplasm of a cell excluding the nucleus
  852. cytoplast = the intact cytoplasmic content of a cell
  853. cytoskeleton = a microscopic network of actin filaments and microtubules in the cytoplasm of many living cells that gives the cell shape and coherence
  854. cytosmear = a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope
  855. cytosol = the aqueous part of the cytoplasm within which various particles and organelles are suspended
  856. cytotoxic T cell = T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it
  857. dacryocyst = either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands
  858. dacryon = the craniometric point at the junction of the anterior border of the lacrimal bone with the frontal bone
  859. dactyl = a finger or toe in human beings or corresponding body part in other vertebrates
  860. dead body = a natural object consisting of a dead animal or person
  861. decidua = the epithelial tissue of the endometrium
  862. deciduous tooth = one of the first temporary teeth of a young mammal
  863. decussation = an intersection or crossing of two tracts in the form of the letter X
  864. deep cervical vein = a vein that accompanies an artery of the same name
  865. deep middle cerebral vein = accompanies the middle cerebral artery deep in the Sylvian fissure
  866. deep temporal vein = temporal veins that empty into the pterygoid plexus
  867. deltoid = a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm
  868. deltoid eminence = a bump on the outside of the humerus where the deltoid muscle attaches
  869. deltoid muscle = a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm
  870. deltoid tuberosity = a bump on the outside of the humerus where the deltoid muscle attaches
  871. dendrite = short fiber that conducts toward the cell body of the neuron
  872. dental plaque = a film of mucus and bacteria deposited on the teeth that encourages the development of dental caries
  873. dentate nucleus = a large laminar nucleus of grey matter within the white matter of each cerebral hemisphere
  874. dentin = bone (calcified tissue) surrounding the pulp cavity of a tooth
  875. dentine = bone (calcified tissue) surrounding the pulp cavity of a tooth
  876. dentition = the kind and number and arrangement of teeth (collectively) in a person or animal
  877. depressor = any nerve whose activity tends to reduce the activity or tone of the body part it serves / any skeletal muscle that draws a body part down
  878. depressor muscle = any skeletal muscle that draws a body part down
  879. depressor nerve = any nerve whose activity tends to reduce the activity or tone of the body part it serves
  880. derma = the deep vascular inner layer of the skin
  881. dermis = the deep vascular inner layer of the skin
  882. derriere = the fleshy part of the human body that you sit on
  883. descending aorta = the descending part of the aorta that branches into the thoracic and abdominal aortae
  884. descending colon = the part of the large intestine that descends from the transverse colon to the sigmoid colon
  885. dewlap = a hanging fold of loose skin on an elderly person's neck
  886. diaphragm = a muscular partition separating the abdominal and thoracic cavities
  887. diaphysis = the main (mid) section of a long bone
  888. diarthrosis = a joint so articulated as to move freely
  889. diastema = a gap or vacant space between two teeth
  890. dick = obscene terms for penis
  891. dictyosome = a netlike structure in the cytoplasm of animal cells
  892. diencephalon = the posterior division of the forebrain
  893. digestive fluid = secretions that aid digestion
  894. digestive gland = any gland having ducts that pour secretions into the digestive tract
  895. digestive juice = secretions that aid digestion
  896. digestive system = the system that makes food absorbable into the body
  897. digestive tract = tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus
  898. digestive tube = tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus
  899. digit = a finger or toe in human beings or corresponding body part in other vertebrates
  900. digital arteries = arteries in the hand and foot that supply the fingers and toes
  901. digital vein = one of the veins serving the fingers or toes
  902. dilator = a muscle or nerve that dilates or widens a body part
  903. dimple = a small natural hollow in the cheek or chin
  904. diploic vein = one of the veins serving the spongy part of the cranial bones
  905. dogtooth = one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars
  906. dome = informal terms for a human head
  907. dominant = an allele that produces the same phenotype whether its paired allele is identical or different
  908. dominant allele = an allele that produces the same phenotype whether its paired allele is identical or different
  909. dominant gene = gene that produces the same phenotype in the organism whether or not its allele identical
  910. dorsal horn = one of two roots of a spinal nerve that passes dorsally from the spinal cord and that consists of sensory fibers
  911. dorsal root = one of two roots of a spinal nerve that passes dorsally from the spinal cord and that consists of sensory fibers
  912. dorsal scapular vein = vein that is a tributary of the subclavian vein or external jugular vein and accompanies the descending scapular artery
  913. dorsal vertebra = one of 12 vertebrae in the human vertebral column
  914. dorsum = the back of the body of a vertebrate or any analogous surface (as the upper or outer surface of an organ or appendage or part) / the posterior part of a human (or animal) body from the neck to the end of the spine
  915. double chin = a fold of fatty tissue under the chin
  916. down = fine soft dense hair
  917. dreadlock = one of many long thin braids of hair radiating from the scalp
  918. dribble = saliva spilling from the mouth
  919. drivel = saliva spilling from the mouth
  920. drool = saliva spilling from the mouth
  921. duct = a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
  922. duct gland = a gland that secretes externally through a duct
  923. ductless gland = any of the glands of the endocrine system that secrete hormones directly into the bloodstream
  924. ductule = a very small duct
  925. ductulus = a very small duct
  926. ductus arteriosus = a blood vessel in a fetus that bypasses pulmonary circulation by connecting the pulmonary artery directly to the ascending aorta
  927. ductus deferens = a duct that carries spermatozoa from the epididymis to the ejaculatory duct
  928. duodenal smear = alimentary tract smear of material obtained from the duodenum
  929. duodenum = the part of the small intestine between the stomach and the jejunum
  930. dura = the outermost (and toughest) of the 3 meninges
  931. dura mater = the outermost (and toughest) of the 3 meninges
  932. ear = the sense organ for hearing and equilibrium / the externally visible cartilaginous structure of the external ear
  933. ear canal = either of the passages in the outer ear from the auricle to the tympanic membrane
  934. ear lobe = the fleshy pendulous part of the external human ear
  935. eardrum = the membrane in the ear that vibrates to sound
  936. earlobe = the fleshy pendulous part of the external human ear
  937. eccrine gland = a small sweat gland that produces only a fluid
  938. ECF = liquid containing proteins and electrolytes including the liquid in blood plasma and interstitial fluid
  939. ectoplasm = the outer granule-free layer of cytoplasm
  940. effector = an organ (a gland or muscle) that becomes active in response to nerve impulses / a nerve fiber that terminates on a muscle or gland and stimulates contraction or secretion
  941. efferent = a nerve that conveys impulses toward or to muscles or glands
  942. efferent fiber = a nerve fiber that carries impulses toward the muscles or glands
  943. efferent nerve = a nerve that conveys impulses toward or to muscles or glands
  944. efferent neuron = a neuron conducting impulses outwards from the brain or spinal cord
  945. egg = one of the two male reproductive glands that produce spermatozoa and secrete androgens
  946. egg cell = the female reproductive cell
  947. eighth cranial nerve = a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea
  948. ejaculate = the thick white fluid containing spermatozoa that is ejaculated by the male genital tract
  949. ejaculatory duct = a part of the seminal duct formed by the duct from the seminal vesicle and the vas deferens
  950. elastic tissue = connective tissue consisting chiefly of elastic fibers found in the dermis of the skin and in the walls of veins and arteries and in some tendons and ligaments
  951. elastin = a fibrous scleroprotein found in elastic tissues such as the walls of arteries
  952. elbow = hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped
  953. elbow bone = the inner and longer of the two bones of the human forearm
  954. elbow joint = hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped
  955. eleventh cranial nerve = arises from two sets of roots (cranial and spinal) that unite to form the nerve
  956. embryonic cell = a cell of an embryo
  957. embryonic membrane = the inner membrane of embryos in higher vertebrates
  958. eminence = a protuberance on a bone especially for attachment of a muscle or ligament
  959. emissary vein = one of several connecting veins in the scalp and head that drain blood from sinuses in the dura mater to veins outside the skull
  960. enamel = hard white substance covering the crown of a tooth
  961. enarthrodial joint = a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
  962. enarthrosis = a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
  963. encephalon = that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull
  964. end organ = a specialized structure at the peripheral end of some motor or sensory nerve fibers
  965. end-plate = the flattened end of a motor neuron that transmits neural impulses to a muscle
  966. endocardium = the membrane that lines the cavities of the heart and forms part of the heart valves
  967. endocranium = membrane lining the inside of the skull
  968. endocrine = any of the glands of the endocrine system that secrete hormones directly into the bloodstream / the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
  969. endocrine gland = any of the glands of the endocrine system that secrete hormones directly into the bloodstream
  970. endocrine system = the system of glands that produce endocrine secretions that help to control bodily metabolic activity
  971. endolymph = the bodily fluid that fills the membranous labyrinth of the inner ear
  972. endometrium = the mucous membrane that lines the uterus; thickens under hormonal control and (if pregnancy does not occur) is shed in menstruation
  973. endoneurium = delicate connective tissue around individual nerve fibers in nerve
  974. endoplasm = the inner portion of the cytoplasm of a cell
  975. endoskeleton = the internal skeleton
  976. endosteum = vascular membrane that lines the inner surface of long bones
  977. endothelium = an epithelium of mesoblastic origin
  978. endplate = the flattened end of a motor neuron that transmits neural impulses to a muscle
  979. energid = a biological unit consisting of a nucleus and the body of cytoplasm with which it interacts
  980. enteroceptor = any receptor that responds to stimuli inside the body
  981. enteron = the alimentary canal
  982. entomion = the craniometric point at the tip of the angular part of the parietal bone that articulates with the temporal bone
  983. entrails = internal organs collectively
  984. eosinophil = a leukocyte readily stained with eosin
  985. eosinophile = a leukocyte readily stained with eosin
  986. ependyma = thin epithelial membrane lining the ventricles of the brain and the spinal cord canal
  987. epicanthic fold = a vertical fold of skin over the nasal canthus; typical for many east Asian peoples
  988. epicanthus = a vertical fold of skin over the nasal canthus; typical for many east Asian peoples
  989. epicardia = the short part of the esophagus extending downward from the diaphragm to the stomach
  990. epicardium = the innermost of the two layers of the pericardium
  991. epicondyle = a projection on a bone above a condyle serving for the attachment of muscles and ligaments
  992. epicranium = the muscle and aponeurosis and skin covering the cranium
  993. epidermal cell = any of the cells making up the epidermis
  994. epidermis = the outer layer of the skin covering the exterior body surface of vertebrates
  995. epididymis = a convoluted tubule in each testis
  996. epigastric artery = one of three arteries supplying the anterior walls of the abdomen
  997. epigastric fossa = a slight depression in the midline just below the sternum
  998. epigastric vein = veins serving the anterior walls of the abdomen
  999. epigastrium = the region lying on or over the stomach
  1000. epiglottis = a flap of cartilage that covers the windpipe while swallowing
  1001. epinephrin = a catecholamine secreted by the adrenal medulla in response to stress
  1002. epinephrine = a catecholamine secreted by the adrenal medulla in response to stress
  1003. epiphysis = a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin / the end of a long bone
  1004. epiphysis cerebri = a small endocrine gland in the brain; situated beneath the back part of the corpus callosum
  1005. episcleral veins = small veins in the sclera near the corneal margin
  1006. epithelial cell = one of the closely packed cells forming the epithelium
  1007. epithelial duct = a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
  1008. epithelial tissue = membranous tissue covering internal organs and other internal surfaces of the body
  1009. epithelium = membranous tissue covering internal organs and other internal surfaces of the body
  1010. erectile organ = an organ containing erectile tissue
  1011. erectile tissue = vascular tissue capable of filling with blood and becoming rigid
  1012. erogenous zone = any area of the body especially sensitive to sexual stimulation
  1013. erythroblast = a nucleated cell in bone marrow from which red blood cells develop
  1014. erythrocyte = a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues
  1015. eschar = a dry scab formed on the skin following a burn or cauterization of the skin
  1016. esophageal smear = alimentary tract smear of material obtained from the esophagus
  1017. esophageal veins = small veins from the esophagus emptying into the brachiocephalic vein or the azygos veins
  1018. esophagogastric junction = the junction between the esophagus and the stomach epithelium
  1019. esophagus = the passage between the pharynx and the stomach
  1020. ethmoid = one of the eight bones of the cranium
  1021. ethmoid bone = one of the eight bones of the cranium
  1022. ethmoid sinus = a sinus of the meatuses of the nasal cavity
  1023. ethmoidal artery = a branch of the ophthalmic artery supplying structures in and around the nasal capsule
  1024. ethmoidal sinus = a sinus of the meatuses of the nasal cavity
  1025. ethmoidal vein = veins that drain the ethmoidal sinuses and empty into the superior ophthalmic vein
  1026. Eustachian tube = either of the paired tubes connecting the middle ears to the nasopharynx
  1027. excitable area = the cortical area that influences motor movements
  1028. excrescence = an abnormal outgrowth or enlargement of some part of the body
  1029. excretory organ = an organ that separates waste substances from the blood and discharges them
  1030. exocrine = a gland that secretes externally through a duct
  1031. exocrine gland = a gland that secretes externally through a duct
  1032. exoskeleton = the exterior protective or supporting structure or shell of many animals (especially invertebrates) including bony or horny parts such as nails or scales or hoofs
  1033. extensor = a skeletal muscle whose contraction extends or stretches a body part
  1034. extensor muscle = a skeletal muscle whose contraction extends or stretches a body part
  1035. external auditory canal = either of the passages in the outer ear from the auricle to the tympanic membrane
  1036. external body part = any body part visible externally
  1037. external carotid = the branch of the carotid artery that supplies blood to the face and tongue and external parts of the head
  1038. external carotid artery = the branch of the carotid artery that supplies blood to the face and tongue and external parts of the head
  1039. external ear = the part of the ear visible externally
  1040. external iliac artery = the outer branch of the common iliac artery on either side of the body
  1041. external iliac vein = a continuation of the femoral vein
  1042. external jugular vein = formed by the junction of the posterior auricular and the retromandibular veins
  1043. external maxillary artery = an artery that originates in the external carotid and gives off branches that supply the neck and face
  1044. external nasal vein = one of the veins that drain the external nose and empty into the angular or facial vein
  1045. external oblique muscle = a diagonally arranged abdominal muscle on either side of the torso
  1046. external organ = an organ that is situated on or near the surface of the body
  1047. external orifice = the orifice through which urine is discharged
  1048. exteroceptor = any receptor that responds to stimuli outside the body
  1049. extracellular fluid = liquid containing proteins and electrolytes including the liquid in blood plasma and interstitial fluid
  1050. extremity = an external body part that projects from the body / that part of a limb that is farthest from the torso
  1051. exuviae = cast-off skins or coverings of various organisms during ecdysis
  1052. eye = the organ of sight
  1053. eye muscle = one of the small muscles of the eye that serve to rotate the eyeball
  1054. eye socket = the bony cavity in the skull containing the eyeball
  1055. eye tooth = one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars
  1056. eyeball = the ball-shaped capsule containing the vertebrate eye
  1057. eyebrow = the arch of hair above each eye
  1058. eyelash = any of the short curved hairs that grow from the edges of the eyelids
  1059. eyelid = either of two folds of skin that can be moved to cover or open the eye
  1060. eyetooth = one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars
  1061. face = the front of the human head from the forehead to the chin and ear to ear / the part of an animal corresponding to the human face
  1062. face fungus = the hair growing on the lower part of a man's face
  1063. facia = a sheet or band of fibrous connective tissue separating or binding together muscles and organs etc
  1064. facial = cranial nerve that supplies facial muscles
  1065. facial artery = an artery that originates in the external carotid and gives off branches that supply the neck and face
  1066. facial hair = hair on the face
  1067. facial muscle = any of the skeletal muscles of the face
  1068. facial nerve = cranial nerve that supplies facial muscles
  1069. facial vein = any of several veins draining the face
  1070. factor = a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons
  1071. falciform ligament = a ligament that attaches part of the liver to the diaphragm and the abdominal wall
  1072. fallen arch = an instep flattened so the entire sole rests on the ground
  1073. Fallopian tube = either of a pair of tubes conducting the egg from the ovary to the uterus
  1074. false glottis = the opening between the false vocal folds
  1075. false vocal cord = either of the upper two vocal cords that are not involved in vocalization
  1076. false vocal fold = either of the upper two vocal cords that are not involved in vocalization
  1077. family jewels = external male sex organs
  1078. fanny = external female sex organs / the fleshy part of the human body that you sit on
  1079. fascia = a sheet or band of fibrous connective tissue separating or binding together muscles and organs etc
  1080. fascicle = a bundle of fibers
  1081. fasciculus = a bundle of fibers
  1082. fat = a kind of body tissue containing stored fat that serves as a source of energy
  1083. fat cell = cells composed of fat
  1084. fatty tissue = a kind of body tissue containing stored fat that serves as a source of energy
  1085. fauces = the passage between the back of the mouth and the pharynx
  1086. faucial tonsil = either of two masses of lymphatic tissue one on each side of the oral pharynx
  1087. feature = the characteristic parts of a person's face: eyes and nose and mouth and chin
  1088. female body = the body of a female human being
  1089. female chest = the chest of a woman
  1090. female genital organ = external female sex organs
  1091. female genitalia = external female sex organs
  1092. female genitals = external female sex organs
  1093. female internal reproductive organ = the reproductive organs of a woman
  1094. female reproductive system = the reproductive system of females
  1095. femoral artery = the chief artery of the thigh
  1096. femoral biceps = the biceps muscle of the thigh
  1097. femoral nerve = one of a pair of nerves that originate from lumbar nerves and supply the muscles and skin of the anterior part of the thigh
  1098. femoral vein = a vein that accompanies the femoral artery in the same sheath; a continuation of the popliteal vein
  1099. femoris = the longest and thickest bone of the human skeleton
  1100. femur = the longest and thickest bone of the human skeleton
  1101. fenestra = a small opening covered with membrane
  1102. fenestra cochleae = fenestra leading into the cochlea
  1103. fenestra of the cochlea = fenestra leading into the cochlea
  1104. fenestra of the vestibule = fenestra that has the base of the stapes attached to it
  1105. fenestra ovalis = fenestra that has the base of the stapes attached to it
  1106. fenestra rotunda = fenestra leading into the cochlea
  1107. fenestra vestibuli = fenestra that has the base of the stapes attached to it
  1108. fertilization membrane = the membrane that forms around a fertilized ovum and prevents penetration by additional spermatozoon
  1109. fertilized ovum = the diploid cell resulting from the union of a haploid spermatozoon and ovum
  1110. festering = a fluid product of inflammation
  1111. fetal circulation = the system of blood vessels and structures through which blood moves in a fetus
  1112. fetal membrane = any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus
  1113. fiber = any of several elongated, threadlike cells
  1114. fiber bundle = a bundle of fibers
  1115. fibre = any of several elongated, threadlike cells
  1116. fibre bundle = a bundle of fibers
  1117. fibroblast = a cell from which connective tissue develops
  1118. fibrocartilage = cartilage that is largely composed of fibers like those in ordinary connective tissue
  1119. fibrous astrocyte = star-shaped cells with long processes
  1120. fibrous joint = an immovable joint
  1121. fibrous tissue = tissue consisting of or containing fibers in both animals and plants
  1122. fibula = the outer and thinner of the two bones of the human leg between the knee and ankle
  1123. fibular vein = accompany the peroneal arteries
  1124. fifth cranial nerve = the main sensory nerve of the face and motor nerve for the muscles of mastication
  1125. figure = alternative names for the body of a human being
  1126. filament = a threadlike structure
  1127. fillet = a bundle of sensory nerve fibers going to the thalamus
  1128. filum = a threadlike structure
  1129. fimbria = thin projections forming a fringe
  1130. finger = any of the terminal members of the hand
  1131. finger wave = a wave made with the fingers
  1132. fingernail = the nail at the end of a finger
  1133. fingertip = the end (tip) of a finger
  1134. first cranial nerve = a collective term for numerous olfactory filaments in the nasal mucosa
  1135. first visual area = the part of the occipital cortex that receives the fibers of the optic radiation from the lateral geniculate body and is the primary receptive area for vision
  1136. fissure = a long narrow slit or groove that divides an organ into lobes
  1137. fissure of Rolando = a brain fissure extending upward on the lateral surface of both hemispheres
  1138. fissure of Sylvius = the deepest and most prominent of the cortical fissures
  1139. fist = a hand with the fingers clenched in the palm
  1140. fistula = an abnormal passage leading from a suppurating cavity to the body surface
  1141. fixed phagocyte = a phagocyte that does not circulate in the blood but is fixed in the liver or spleen or bone marrow etc.
  1142. flab = loose or flaccid body fat
  1143. flap = a movable piece of tissue partly connected to the body
  1144. flatfoot = a foot afflicted with a fallen arch
  1145. flattop = a closely cropped haircut
  1146. flesh = alternative names for the body of a human being / the soft tissue of the body of a vertebrate: mainly muscle tissue and fat
  1147. flexor = a skeletal muscle whose contraction bends a joint
  1148. flexor muscle = a skeletal muscle whose contraction bends a joint
  1149. foetal circulation = the system of blood vessels and structures through which blood moves in a fetus
  1150. fold = a folded part
  1151. follicle = any small spherical group of cells containing a cavity
  1152. fontanel = any membranous gap between the bones of the cranium in an infant or fetus
  1153. fontanelle = any membranous gap between the bones of the cranium in an infant or fetus
  1154. foot = the part of the leg of a human being below the ankle joint
  1155. foramen = a natural opening or perforation through a bone or a membranous structure
  1156. foramen magnum = the large opening at the base of the cranium through which the spinal cord passes
  1157. foramen of Monro = the small opening (on both the right and left sides) that connects the third ventricle in the diencephalon with the lateral ventricle in the cerebral hemisphere
  1158. forearm = the part of the superior limb between the elbow and the wrist
  1159. forebrain = the anterior portion of the brain
  1160. forefinger = the finger next to the thumb
  1161. forehead = the large cranial bone forming the front part of the cranium: includes the upper part of the orbits / the part of the face above the eyes
  1162. forelock = a lock of hair growing (or falling) over the forehead
  1163. foremilk = milky fluid secreted for the first day or two after parturition
  1164. foreskin = a fold of skin covering the tip of the penis / a fold of skin covering the tip of the clitoris
  1165. fork = the angle formed by the inner sides of the legs where they join the human trunk
  1166. form = alternative names for the body of a human being
  1167. formative cell = a cell of an embryo
  1168. fornix = an arched bundle of white fibers at the base of the brain by which the hippocampus of each hemisphere projects to the contralateral hippocampus and to the thalamus and mamillary bodies / generally any arch shaped structure
  1169. fourth cranial nerve = either of the two cranial nerves on either side that control the superior oblique muscles of the eyes
  1170. fourth ventricle = an irregular ventricle between the third ventricle and the central canal of the spinal cord
  1171. fovea = area consisting of a small depression in the retina containing cones and where vision is most acute
  1172. fovea centralis = area consisting of a small depression in the retina containing cones and where vision is most acute
  1173. frame = alternative names for the body of a human being / the hard structure (bones and cartilages) that provides a frame for the body of an animal
  1174. freckle = a small brownish spot (of the pigment melanin) on the skin
  1175. free nerve ending = microscopic sensory nerve endings in the skin that are not connected to any specific sensory receptor
  1176. free phagocyte = a phagocyte that circulates in the blood
  1177. frill = an external body part consisting of feathers or hair about the neck of a bird or other animal / (paleontology) a bony plate that curves upward behind the skull of many ceratopsian dinosaurs
  1178. fringe = a border of hair that is cut short and hangs across the forehead
  1179. front tooth = a tooth situated at the front of the mouth
  1180. frontal bone = the large cranial bone forming the front part of the cranium: includes the upper part of the orbits
  1181. frontal cortex = that part of the cerebral cortex in either hemisphere of the brain lying directly behind the forehead
  1182. frontal eminence = either prominence of the frontal bone above each orbit
  1183. frontal gyrus = any of the convolutions of the outer surface of the frontal lobe of the cerebrum
  1184. frontal lobe = that part of the cerebral cortex in either hemisphere of the brain lying directly behind the forehead
  1185. frontal sinus = one of a pair of cavities in the frontal bone
  1186. frontal suture = the suture between two halves of the frontal bone
  1187. fundament = the fleshy part of the human body that you sit on
  1188. fundus = the base of a hollow organ or that part of the organ farthest from its opening
  1189. funiculus = any of several body structure resembling a cord
  1190. funny bone = a point on the elbow where the ulnar nerve passes near the surface
  1191. fuzz = the first beard of an adolescent boy
  1192. gall = a digestive juice secreted by the liver and stored in the gallbladder
  1193. gall bladder = a muscular sac attached to the liver that stores bile (secreted by the liver) until it is needed for digestion
  1194. gallbladder = a muscular sac attached to the liver that stores bile (secreted by the liver) until it is needed for digestion
  1195. gamete = a mature sexual reproductive cell having a single set of unpaired chromosomes
  1196. gametocyte = an immature animal or plant cell that develops into a gamete by meiosis
  1197. gangliocyte = a nerve cell whose body is outside the central nervous system
  1198. ganglion = an encapsulated neural structure consisting of a collection of cell bodies or neurons
  1199. ganglion cell = a nerve cell whose body is outside the central nervous system
  1200. gastric acid = digestive secretions of the stomach glands consisting chiefly of hydrochloric acid and mucin and the enzymes pepsin and rennin and lipase
  1201. gastric artery = the arteries that supply the walls of the stomach
  1202. gastric juice = digestive secretions of the stomach glands consisting chiefly of hydrochloric acid and mucin and the enzymes pepsin and rennin and lipase
  1203. gastric smear = alimentary tract smear of material obtained from the stomach
  1204. gastric vein = one of several veins draining the stomach walls
  1205. gastrin = polypeptide hormone secreted by the mucous lining of the stomach
  1206. gastrocnemius = the muscle in the back part of the leg that forms the greater part of the calf
  1207. gastrocnemius muscle = the muscle in the back part of the leg that forms the greater part of the calf
  1208. gastrocolic omentum = part of the peritoneum attached to the stomach and to the colon and covering the intestines
  1209. gastroepiploic vein = one of two veins serving the great curvature of the stomach
  1210. gastrointestinal hormone = hormones that affect gastrointestinal functioning
  1211. gastrointestinal system = the system that makes food absorbable into the body
  1212. gastrointestinal tract = tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus
  1213. gastroomental vein = one of two veins serving the great curvature of the stomach
  1214. gene = a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons
  1215. genetic marker = a specific gene that produces a recognizable trait and can be used in family or population studies
  1216. genicular vein = veins that drain blood from structures around the knee
  1217. geniculate body = one of four small oval masses that protrude slightly from the underside of the thalamus and function as synaptic centers on the way to the cerebral cortex
  1218. genital organ = external sex organ
  1219. genital system = organs and tissues involved in the production and maturation of gametes and in their union and subsequent development as offspring
  1220. genitalia = external sex organ
  1221. genitals = external sex organ
  1222. genitourinary apparatus = the system that includes all organs involved in reproduction and in the formation and voidance of urine
  1223. genitourinary system = the system that includes all organs involved in reproduction and in the formation and voidance of urine
  1224. genu = hinge joint in the human leg connecting the tibia and fibula with the femur and protected in front by the patella
  1225. genu varum = a leg bowed outward at the knee
  1226. germ = a small apparently simple structure (as a fertilized egg) from which new tissue can develop into a complete organism
  1227. germ cell = a spermatozoon or an ovum
  1228. germ plasm = the protoplasm of the germ cells that contains chromosomes and genes
  1229. ghrelin = a gastrointestinal hormone produced by epithelial cells lining the fundus of the stomach
  1230. GI hormones = hormones that affect gastrointestinal functioning
  1231. GI tract = tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus
  1232. gingiva = the tissue (covered by mucous membrane) of the jaws that surrounds the bases of the teeth
  1233. ginglymoid joint = a freely moving joint in which the bones are so articulated as to allow extensive movement in one plane
  1234. ginglymus = a freely moving joint in which the bones are so articulated as to allow extensive movement in one plane
  1235. girdle = an encircling or ringlike structure
  1236. glabella = a smooth prominence of the frontal bone between and above the eyebrows
  1237. gladiolus = the large central part of the breastbone
  1238. gland = any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream
  1239. glandulae cervicales uteri = mucus-secreting glands in the mucosa of the uterine cervix
  1240. glandulae sebaceae = a cutaneous gland that secretes sebum (usually into a hair follicle) for lubricating hair and skin
  1241. glans = a small rounded structure
  1242. glans clitoridis = small mass of erectile tissue at the end of the body of the clitoris
  1243. glans penis = the conical mass of erectile tissue that forms the head of the penis
  1244. gleet = a thin morbid discharge as from a wound or especially chronic gonorrhea
  1245. glenoid cavity = the concavity in the head of the scapula that receives the head of the humerus to form the shoulder joint
  1246. glenoid fossa = the concavity in the head of the scapula that receives the head of the humerus to form the shoulder joint / a deep concavity in the temporal bone at the root of the zygomatic arch that receives the condyle of the mandible
  1247. glia = sustentacular tissue that surrounds and supports neurons in the central nervous system
  1248. glial cell = a cell of the neuroglia
  1249. gliding joint = a freely moving joint in which the articulations allow only gliding motions
  1250. globus pallidus = the inner pale yellow part of the lenticular nucleus
  1251. glomerular capsule = thin double membrane surrounding the glomerulus of a nephron
  1252. glomerulus = a small intertwined group of capillaries in the malpighian body
  1253. glossa = a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity
  1254. glossopharyngeal nerve = sensory nerve to the pharynx and back of the tongue; motor fibers innervate muscles that elevate the pharynx and larynx
  1255. glottis = the vocal apparatus of the larynx
  1256. glottis spuria = the opening between the false vocal folds
  1257. glottis vera = the space between the two true vocal folds
  1258. glucagon = a hormone secreted by the pancreas
  1259. glute = any one of three large skeletal muscles that form the buttock and move the thigh
  1260. gluteal artery = branches of the internal iliac artery that supply the hip joint and gluteal region
  1261. gluteal muscle = any one of three large skeletal muscles that form the buttock and move the thigh
  1262. gluteal vein = veins draining the gluteal muscles on either side of the body
  1263. gluteus = any one of three large skeletal muscles that form the buttock and move the thigh
  1264. gluteus maximus = the outermost of the three gluteal muscles
  1265. gluteus medius = the middle of the three gluteal muscles
  1266. gluteus minimus = the innermost of the three gluteal muscles
  1267. gluteus muscle = any one of three large skeletal muscles that form the buttock and move the thigh
  1268. gnathion = the most inferior point of the mandible in the midline
  1269. goatee = a small chin beard trimmed to a point
  1270. gob = informal terms for the mouth
  1271. goblet cell = an epithelial cell that secretes mucous
  1272. Golgi apparatus = a netlike structure in the cytoplasm of animal cells
  1273. Golgi body = a netlike structure in the cytoplasm of animal cells
  1274. Golgi cell = a neuron in the cerebral cortex with short dendrites and with either a long axon or a short axon that ramifies in the grey matter
  1275. Golgi complex = a netlike structure in the cytoplasm of animal cells
  1276. Golgi's cell = a neuron in the cerebral cortex with short dendrites and with either a long axon or a short axon that ramifies in the grey matter
  1277. gonad = a gland in which gametes (sex cells) are produced
  1278. gonadotrophic hormone = hormone secreted by the anterior pituitary gland and placenta
  1279. gonadotrophin = hormone secreted by the anterior pituitary gland and placenta
  1280. gonadotropic hormone = hormone secreted by the anterior pituitary gland and placenta
  1281. gonadotropin = hormone secreted by the anterior pituitary gland and placenta
  1282. gonion = the craniometric point on either side at the apex of the lower jaw
  1283. gore = coagulated blood from a wound
  1284. gorge = the passage between the pharynx and the stomach
  1285. Graafian follicle = a vascular body in a mammalian ovary enclosing a developing egg
  1286. graft = tissue or organ transplanted from a donor to a recipient
  1287. granulocyte = a leukocyte that has granules in its cytoplasm
  1288. gray matter = greyish nervous tissue containing cell bodies as well as fibers
  1289. gray substance = greyish nervous tissue containing cell bodies as well as fibers
  1290. great adductor muscle = the muscle that adducts and extends the thigh
  1291. great cerebral vein = a cerebral vein formed by the two internal cerebral veins and continuing into the sinus rectus
  1292. great saphenous vein = the longest vein in the body
  1293. great toe = the first largest innermost toe
  1294. greater omentum = part of the peritoneum attached to the stomach and to the colon and covering the intestines
  1295. greater pectoral muscle = a skeletal muscle that adducts and rotates the arm
  1296. greater peritoneal sac = the interior of the peritoneum
  1297. greater rhomboid muscle = rhomboid muscle that draws the scapula toward the spinal column
  1298. grey matter = greyish nervous tissue containing cell bodies as well as fibers
  1299. grey substance = greyish nervous tissue containing cell bodies as well as fibers
  1300. grinder = grinding tooth with a broad crown
  1301. gristle = tough elastic tissue
  1302. groin = the crease at the junction of the inner part of the thigh with the trunk together with the adjacent region and often including the external genitals
  1303. groove = any furrow or channel on a bodily structure or part
  1304. ground substance = the clear nongranular portion of the cytoplasm of a cell / the body substance in which tissue cells are embedded
  1305. group A = the blood group whose red cells carry the A antigen
  1306. group AB = the blood group whose red cells carry both the A and B antigens
  1307. group B = the blood group whose red cells carry the B antigen
  1308. group O = the blood group whose red cells carry neither the A nor B antigens
  1309. growth hormone = a hormone produced by the anterior pituitary gland
  1310. grume = a semisolid mass of coagulated red and white blood cells
  1311. gullet = the passage between the pharynx and the stomach
  1312. gum = the tissue (covered by mucous membrane) of the jaws that surrounds the bases of the teeth
  1313. gum ridge = a ridge that forms the borders of the upper and lower jaws and contains the sockets of the teeth
  1314. gustatory cell = an epithelial cell in a taste bud that activates sensory fibers of the facial nerve or the glossopharyngeal nerve or the vagus nerve
  1315. gustatory organ = an oval sensory end organ on the surface of the tongue
  1316. gut = the part of the alimentary canal between the stomach and the anus
  1317. gyrus = a convex fold or elevation in the surface of the brain
  1318. gyrus cinguli = a long curved structure on the medial surface of the cerebral hemispheres
  1319. haemal arch = a structure arising ventrally from a vertebral centrum and enclosing the caudal blood vessels
  1320. hair = any of the cylindrical filaments characteristically growing from the epidermis of a mammal / a covering for the body (or parts of it) consisting of a dense growth of threadlike structures
  1321. hair cell = a sensory epithelial cell present in the organ of Corti
  1322. hair follicle = a small tubular cavity containing the root of a hair
  1323. hair style = the arrangement of the hair
  1324. haircut = the style in which hair has been cut
  1325. hairdo = the arrangement of the hair
  1326. hairline = the natural margin formed by hair on the head
  1327. hairstyle = the arrangement of the hair
  1328. half-moon = the crescent-shaped area at the base of the human fingernail
  1329. hallux = the first largest innermost toe
  1330. hamate = the wrist bone in line with the 4th and 5th fingers
  1331. hamate bone = the wrist bone in line with the 4th and 5th fingers
  1332. hammer = the ossicle attached to the eardrum
  1333. hammertoe = a deformed toe which is bent in a clawlike arch
  1334. hamstring = one of the tendons at the back of the knee
  1335. hamstring tendon = one of the tendons at the back of the knee
  1336. hand = the (prehensile) extremity of the superior limb
  1337. handle-bars = a large bushy moustache
  1338. hangnail = a loose narrow strip of skin near the base of a fingernail
  1339. haplotype = a combination of alleles (for different genes) that are located closely together on the same chromosome and that tend to be inherited together
  1340. hard palate = the bony part of the roof of the mouth
  1341. haunch = the hip and buttock and upper thigh in human beings
  1342. Haversian canal = any of the many tiny canals that contain blood vessels and connective tissue and that form a network in bone
  1343. haw = the nictitating membrane of a horse
  1344. hawk nose = a nose curved downward like the beak of a hawk
  1345. head = that part of a skeletal muscle that is away from the bone that it moves / the upper part of the human body or the front part of the body in animals
  1346. head of hair = growth of hair covering the scalp of a human being
  1347. headful = a covering over the surface of your head
  1348. heart = the hollow muscular organ located behind the sternum and between the lungs
  1349. heart muscle = the muscle tissue of the heart
  1350. heart valve = a valve to control one-way flow of blood
  1351. heart ventricle = a chamber of the heart that receives blood from an atrium and pumps it to the arteries
  1352. heel = the back part of the human foot
  1353. heelbone = the largest tarsal bone
  1354. helper cell = T cell with CD4 receptor that recognizes antigens on the surface of a virus-infected cell and secretes lymphokines that stimulate B cells and killer T cells
  1355. helper T cell = T cell with CD4 receptor that recognizes antigens on the surface of a virus-infected cell and secretes lymphokines that stimulate B cells and killer T cells
  1356. hemal arch = a structure arising ventrally from a vertebral centrum and enclosing the caudal blood vessels
  1357. hematopoeitic stem cell = blood forming stem cells in the bone marrow
  1358. hemisphere = either half of the cerebrum
  1359. hemizygos vein = a continuation of the left ascending lumbar vein
  1360. hemizygous vein = a continuation of the left ascending lumbar vein
  1361. hemorrhoidal vein = any of several veins draining the walls of the anal canal and rectum
  1362. hepatic artery = arteries that supply the liver
  1363. hepatic duct = the duct that drains bile from the liver
  1364. hepatic lobe = any of the five lobes forming the liver
  1365. hepatic portal vein = a short vein that carries blood into the liver
  1366. hepatic vein = a vein that drains the liver
  1367. heterograft = tissue from an animal of one species used as a temporary graft (as in cases of severe burns) on an individual of another species
  1368. heterozygote = an organism having two different alleles of a particular gene and so giving rise to varying offspring
  1369. hiatus = a natural opening or perforation through a bone or a membranous structure
  1370. hilum = a depression or fissure where vessels or nerves or ducts enter a bodily organ
  1371. hilus = a depression or fissure where vessels or nerves or ducts enter a bodily organ
  1372. hind end = the fleshy part of the human body that you sit on
  1373. hindbrain = the posterior portion of the brain including cerebellum and brainstem
  1374. hindgut = the caudal part of the alimentary canal in vertebrate embryos
  1375. hindquarters = the fleshy part of the human body that you sit on
  1376. hinge joint = a freely moving joint in which the bones are so articulated as to allow extensive movement in one plane
  1377. hip = either side of the body below the waist and above the thigh / the ball-and-socket joint between the head of the femur and the acetabulum / the structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebrates
  1378. hip joint = the ball-and-socket joint between the head of the femur and the acetabulum
  1379. hip socket = the socket part of the ball-and-socket joint between the head of the femur and the innominate bone
  1380. hipbone = large flaring bone forming one half of the pelvis
  1381. hippocampus = a complex neural structure (shaped like a sea horse) consisting of grey matter and located on the floor of each lateral ventricle; intimately involved in motivation and emotion as part of the limbic system
  1382. histamine = amine formed from histidine that stimulates gastric secretions and dilates blood vessels
  1383. histiocyte = a macrophage that is found in connective tissue
  1384. holandric gene = a gene located on a Y chromosome
  1385. hole = informal terms for the mouth
  1386. homeobox = one of various similar homeotic genes that are involved in bodily segmentation during embryonic development
  1387. homeobox gene = one of various similar homeotic genes that are involved in bodily segmentation during embryonic development
  1388. homeotic gene = one the genes that are involved in embryologic development
  1389. homograft = tissue or organ transplanted from a donor of the same species but different genetic makeup
  1390. homozygote = an organism having two identical alleles of a particular gene and so breeding true for the particular characteristic
  1391. honker = informal terms for the nose
  1392. hooknose = a nose with a prominent slightly aquiline bridge
  1393. hooks = large strong hand
  1394. hooter = informal terms for the nose
  1395. hormone = the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
  1396. horny layer = the outermost layer of the epidermis consisting of dead cells that slough off
  1397. horny structure = any rigid body structure composed primarily of keratin
  1398. human body = alternative names for the body of a human being
  1399. human elbow = hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped
  1400. human face = the front of the human head from the forehead to the chin and ear to ear
  1401. human foot = the part of the leg of a human being below the ankle joint
  1402. human growth hormone = a hormone produced by the anterior pituitary gland
  1403. human head = the head of a human being
  1404. human knee = hinge joint in the human leg connecting the tibia and fibula with the femur and protected in front by the patella
  1405. humerus = bone extending from the shoulder to the elbow
  1406. humor = the liquid parts of the body / (Middle Ages) one of the four fluids in the body whose balance was believed to determine your emotional and physical state
  1407. humour = the liquid parts of the body / (Middle Ages) one of the four fluids in the body whose balance was believed to determine your emotional and physical state
  1408. Humulin = a form of insulin (trade name Humulin) made from recombinant DNA that is identical to human insulin
  1409. hyaline cartilage = translucent cartilage that is common in joints and the respiratory passages
  1410. hyaloid = the transparent membrane enveloping the vitreous humor of the eye and separating it from the retina
  1411. hyaloid membrane = the transparent membrane enveloping the vitreous humor of the eye and separating it from the retina
  1412. hyaloplasm = the clear nongranular portion of the cytoplasm of a cell
  1413. hybridoma = a hybrid cell resulting from the fusion of a lymphocyte and a tumor cell
  1414. hymen = a fold of tissue that partly covers the entrance to the vagina of a virgin
  1415. hyoid = a U-shaped bone at the base of the tongue that supports the tongue muscles
  1416. hyoid bone = a U-shaped bone at the base of the tongue that supports the tongue muscles
  1417. hypochondrium = the upper region of the abdomen just below the lowest ribs on either side of the epigastrium
  1418. hypogastric artery = the inner branch of the common iliac artery on either side of the body
  1419. hypogastric plexus = a plexus of nerves serving the pelvic viscera
  1420. hypogastric vein = a vein that unites with the external iliac vein to form the common iliac vein
  1421. hypoglossal = supplies intrinsic muscles of the tongue and other tongue muscles
  1422. hypoglossal nerve = supplies intrinsic muscles of the tongue and other tongue muscles
  1423. hypophyseal stalk = the funnel-shaped stalk connecting the pituitary gland to the hypothalamus
  1424. hypophysis = the master gland of the endocrine system
  1425. hypothalamic releasing factor = any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones
  1426. hypothalamic releasing hormone = any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones
  1427. hypothalamus = a basal part of the diencephalon governing autonomic nervous system
  1428. ichor = a fluid product of inflammation
  1429. ileal artery = branch of the superior mesenteric artery that supplies the ileum
  1430. ileocecal valve = valve between the ileum of the small intestine and the cecum of the large intestine
  1431. ileocolic artery = an artery that originates from the superior mesenteric artery and supplies the terminal part of the ileum and the cecum and the vermiform appendix and the ascending colon
  1432. ileocolic vein = a vein that drains the end of the ileum and the appendix and the cecum and the lower part of the ascending colon
  1433. ileum = the part of the small intestine between the jejunum and the cecum
  1434. iliac artery = one of the large arteries supplying blood to the pelvis and legs
  1435. iliac vein = one of three veins draining the pelvic area
  1436. iliolumbar artery = an artery that originates in the internal iliac artery and supplies the pelvic muscles and bones
  1437. iliolumbar vein = a branch of the internal iliac vein
  1438. ilium = the upper and widest of the three bones making up the hipbone
  1439. immune system = a system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by producing the immune response
  1440. imperforate anus = a congenital defect of the anus
  1441. imperforate hymen = hymen that is completely closed so that menstrual blood cannot flow out
  1442. imperial = a small tufted beard worn by Emperor Napoleon III
  1443. imperial beard = a small tufted beard worn by Emperor Napoleon III
  1444. incisor = a tooth for cutting or gnawing
  1445. incompetent cervix = uterine cervix that becomes dilated before term and without labor often resulting in miscarriage or premature birth
  1446. incus = the ossicle between the malleus and the stapes
  1447. index = the finger next to the thumb
  1448. index finger = the finger next to the thumb
  1449. inferior alveolar artery = the alveolar artery that goes through the mandibular canal to supply the lower teeth
  1450. inferior cerebellar artery = the inferior branch of the cerebellar artery
  1451. inferior cerebral vein = veins that drain the undersurface of the cerebral hemispheres and empty into the cavernous and transverse sinuses
  1452. inferior colliculus = an essential auditory center in the midbrain
  1453. inferior epigastric vein = empties into the external iliac vein
  1454. inferior labial artery = an artery that is a branch of the facial artery that supplies the lower lip
  1455. inferior labial vein = a tributary of the facial vein that drains the lower lip
  1456. inferior mesenteric artery = arises near the lower end of the aorta and supplies the large intestine
  1457. inferior ophthalmic vein = a vein that drains a venous network in the floor and medial wall of the eye socket
  1458. inferior pulmonary vein = either of two pulmonary veins (left and right) returning blood from the inferior lobes of the lungs
  1459. inferior rectus = the ocular muscle whose contraction turns the eyeball down and medially
  1460. inferior rectus muscle = the ocular muscle whose contraction turns the eyeball down and medially
  1461. inferior thalamostriate vein = tributaries to the basal vein
  1462. inferior thyroid vein = any of several veins on each side that drain the thyroid gland and empty into the innominate vein
  1463. inferior vena cava = receives blood from lower limbs and abdominal organs and empties into the posterior part of the right atrium of the heart
  1464. inferior vocal cord = either of the two lower vocal folds that come together to form the glottis
  1465. inferior vocal fold = either of the two lower vocal folds that come together to form the glottis
  1466. infraorbital artery = an artery that originates from the maxillary artery and supplies structures below the orbit
  1467. infundibulum = any of various funnel-shaped parts of the body
  1468. ingrown hair = a hair that does not emerge from the follicle but remains embedded in the skin
  1469. ingrown toenail = toenail having its free tip or edges embedded in the surrounding flesh
  1470. inguen = the crease at the junction of the inner part of the thigh with the trunk together with the adjacent region and often including the external genitals
  1471. inguinal canal = oblique passage through the lower abdominal wall; in males it is the passage through which the testes descend into the scrotum and it contains the spermatic cord
  1472. inion = the craniometric point that is the most prominent point at the back of the head
  1473. ink = dark protective fluid ejected into the water by cuttlefish and other cephalopods
  1474. innards = internal organs collectively
  1475. inner ear = a complex system of interconnecting cavities
  1476. innominate artery = a large artery arising from the arch of the aorta and divides into the right subclavian artery and the right common carotid artery
  1477. innominate bone = large flaring bone forming one half of the pelvis
  1478. innominate vein = veins formed by the union of the internal jugular and subclavian veins
  1479. inosculation = a natural or surgical joining of parts or branches of tubular structures so as to make or become continuous
  1480. instep = the arch of the foot
  1481. insulin = hormone secreted by the isles of Langerhans in the pancreas
  1482. integument = an outer protective covering such as the skin of an animal or a cuticle or seed coat or rind or shell
  1483. integumentary system = the skin and its appendages
  1484. interbrain = the posterior division of the forebrain
  1485. intercapitular vein = veins connecting the dorsal and palmar veins of the hand or the dorsal and plantar veins of the foot
  1486. intercellular substance = the body substance in which tissue cells are embedded
  1487. intercostal = muscles between the ribs
  1488. intercostal artery = several arteries and supplying the intercostal spaces of the rib cage
  1489. intercostal muscle = muscles between the ribs
  1490. intercostal vein = several veins draining the intercostal spaces of the rib cage
  1491. intermaxillary suture = the suture between the two maxillae of the upper jawbone
  1492. intermediate temporal artery = temporal artery that goes to the middle part of the cerebral cortex of the temporal lobe
  1493. internal auditory artery = an artery that is a branch of the basilar artery that supplies the labyrinth
  1494. internal auditory vein = veins that drain the inner ear
  1495. internal carotid artery = the branch of the carotid artery that supplies blood to the brain and eyes and internal parts of the head
  1496. internal cerebral vein = two paired veins passing caudally near the midline and uniting to form the great cerebral vein
  1497. internal ear = a complex system of interconnecting cavities
  1498. internal iliac artery = the inner branch of the common iliac artery on either side of the body
  1499. internal iliac vein = a vein that unites with the external iliac vein to form the common iliac vein
  1500. internal jugular vein = a continuation of the sigmoid sinus of the dura mater
  1501. internal maxillary artery = the maxillary artery that supplies deep structure of the face and some of the meninges
  1502. internal organ = a main organ that is situated inside the body
  1503. internal secretion = the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
  1504. internal spermatic artery = a branch of the aorta supplying the testicles
  1505. internasal suture = the suture between the two nasal bones
  1506. interoceptor = any receptor that responds to stimuli inside the body
  1507. interparietal suture = the suture uniting the two parietal bones
  1508. interphalangeal joint = any of the joints between the phalanges of the fingers or toes
  1509. interstice = a small structural space between tissues or parts of an organ
  1510. interstitial fluid = liquid found between the cells of the body that provides much of the liquid environment of the body
  1511. interstitial tissue = tissue between the cells of a structure or part in plant or animal
  1512. interventricular foramen = the small opening (on both the right and left sides) that connects the third ventricle in the diencephalon with the lateral ventricle in the cerebral hemisphere
  1513. intervertebral disc = a fibrocartilaginous disc serving as a cushion between all of the vertebrae of the spinal column
  1514. intervertebral disk = a fibrocartilaginous disc serving as a cushion between all of the vertebrae of the spinal column
  1515. intervertebral vein = one of several veins accompanying spinal nerves
  1516. intestinal artery = branch of the superior mesenteric artery that supplies the ileum / an artery that is a branch of the superior mesenteric artery that supplies the jejunum
  1517. intestinal juice = secretions by glands lining the walls of the intestines
  1518. intestine = the part of the alimentary canal between the stomach and the anus
  1519. intima = the innermost membrane of an organ
  1520. intracellular fluid = liquid contained inside the cell membranes
  1521. intracranial cavity = the cavity enclosed by the cranium
  1522. introitus = entrance or opening to a hollow organ or tube
  1523. involuntary muscle = a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels
  1524. iris = muscular diaphragm that controls the size of the pupil which in turn controls the amount of light that enters the eye
  1525. ischial bone = one of the three sections of the hipbone
  1526. ischium = one of the three sections of the hipbone
  1527. islands of Langerhans = cell clusters in the pancreas that form the endocrine part of that organ
  1528. isles of Langerhans = cell clusters in the pancreas that form the endocrine part of that organ
  1529. islets of Langerhans = cell clusters in the pancreas that form the endocrine part of that organ
  1530. isogamete = either of a pair of conjugating gametes of the same size and structure
  1531. isthmus = a cord-like tissue connecting two larger parts of an anatomical structure
  1532. jaw = the part of the skull of a vertebrate that frames the mouth and holds the teeth / the bones of the skull that frame the mouth and serve to open it
  1533. jawbone = the jaw in vertebrates that is hinged to open the mouth
  1534. jejunal artery = an artery that is a branch of the superior mesenteric artery that supplies the jejunum
  1535. jejunum = the part of the small intestine between the duodenum and the ileum
  1536. joint = the point of connection between two bones or elements of a skeleton
  1537. jowl = the jaw in vertebrates that is hinged to open the mouth / a fullness and looseness of the flesh of the lower cheek and jaw
  1538. jugal bone = the arch of bone beneath the eye that forms the prominence of the cheek
  1539. jugal point = the craniometric point at the union of the frontal and temporal processes of the zygomatic bone
  1540. jugale = the craniometric point at the union of the frontal and temporal processes of the zygomatic bone
  1541. jugular = veins in the neck that return blood from the head
  1542. jugular vein = veins in the neck that return blood from the head
  1543. juice = any of several liquids of the body
  1544. juvenile body = the body of a young person
  1545. karyolymph = a clear liquid in the cell nucleus in which the nucleolus and chromatin and other structures are dispersed
  1546. karyon = a part of the cell containing DNA and RNA and responsible for growth and reproduction
  1547. karyoplasm = the protoplasm that constitutes the nucleus of a cell
  1548. karyotype = the appearance of the chromosomal makeup of a somatic cell in an individual or species
  1549. keel = the median ridge on the breastbone of birds that fly
  1550. keister = the fleshy part of the human body that you sit on
  1551. kidney = either of two bean-shaped excretory organs that filter wastes (especially urea) from the blood and excrete them and water in urine
  1552. killer cell = T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it
  1553. killer T cell = T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it
  1554. kinetochore = a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape
  1555. kiss curl = a spiral curl plastered on the forehead or cheek
  1556. kisser = the human face
  1557. knee = hinge joint in the human leg connecting the tibia and fibula with the femur and protected in front by the patella
  1558. knee joint = hinge joint in the human leg connecting the tibia and fibula with the femur and protected in front by the patella
  1559. kneecap = a small flat triangular bone in front of the knee that protects the knee joint
  1560. kneepan = a small flat triangular bone in front of the knee that protects the knee joint
  1561. knocker = either of two soft fleshy milk-secreting glandular organs on the chest of a woman
  1562. knuckle = a joint of a finger when the fist is closed
  1563. knuckle joint = a joint of a finger when the fist is closed
  1564. Kupffer's cell = specialized cells in the liver that destroy bacteria, foreign proteins, and worn-out blood cells
  1565. labia majora = the two outer folds of the vulva
  1566. labia minora = the two inner folds of the vulva
  1567. labial artery = an artery that is a branch of the facial artery that supplies the lips of the mouth
  1568. labial vein = a vein draining the lips of the mouth / veins draining the lips of the vulva
  1569. labium = a liplike structure that bounds a bodily orifice
  1570. labrocyte = a large connective tissue cell that contains histamine and heparin and serotonin which are released in allergic reactions or in response to injury or inflammation
  1571. labyrinth = a complex system of interconnecting cavities
  1572. labyrinthine artery = an artery that is a branch of the basilar artery that supplies the labyrinth
  1573. labyrinthine vein = veins that drain the inner ear
  1574. lachrymal duct = any of several small ducts that carry tears from the lacrimal glands
  1575. lachrymal gland = any of the glands in the eyes that secrete tears
  1576. lachrymal secretion = saline fluid secreted by lacrimal glands
  1577. lacrimal apparatus = the structures that secrete and drain tears from the eye
  1578. lacrimal artery = an artery that originates from the ophthalmic artery and supplies the lacrimal gland and rectal eye muscles and the upper eyelid and the forehead
  1579. lacrimal bone = small fragile bone making up part of the front inner walls of each eye socket and providing room for the passage of the lacrimal ducts
  1580. lacrimal duct = any of several small ducts that carry tears from the lacrimal glands
  1581. lacrimal gland = any of the glands in the eyes that secrete tears
  1582. lacrimal sac = either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands
  1583. lacrimal secretion = saline fluid secreted by lacrimal glands
  1584. lacrimal vein = drains the lacrimal gland
  1585. lacteal = any of the lymphatic vessels that convey chyle from the small intestine to the thoracic duct
  1586. lactiferous duct = ducts of the mammary gland that carry milk to the nipple
  1587. lambda = the craniometric point at the junction of the sagittal and lamboid sutures of the skull
  1588. lamboid suture = the suture between the occipital and parietal bones
  1589. lamella = a thin membrane that is one of the calcified layers that form bones
  1590. lamina = a thin plate or layer
  1591. lamina arcus vertebrae = lamina of the vertebral arch
  1592. landmark = an anatomical structure used as a point of origin in locating other anatomical structures (as in surgery) or as point from which measurements can be taken
  1593. language area = a large cortical area (in the left hemisphere in most people) containing all the centers associated with language
  1594. language zone = a large cortical area (in the left hemisphere in most people) containing all the centers associated with language
  1595. lantern jaw = a long thin lower jaw
  1596. lanugo = the fine downy hair covering a human fetus
  1597. lap = the upper side of the thighs of a seated person
  1598. lappet = a fleshy wrinkled and often brightly colored fold of skin hanging from the neck or throat of certain birds (chickens and turkeys) or lizards
  1599. large intestine = beginning with the cecum and ending with the rectum; includes the cecum and the colon and the rectum
  1600. laryngeal artery = either of two arteries that supply blood to the larynx
  1601. laryngeal vein = one of two veins draining the larynx
  1602. laryngopharynx = the lower part of the pharynx
  1603. larynx = a cartilaginous structure at the top of the trachea
  1604. lash = any of the short curved hairs that grow from the edges of the eyelids
  1605. lat = a broad flat muscle on either side of the back
  1606. lateral cerebral sulcus = the deepest and most prominent of the cortical fissures
  1607. lateral condyle = a condyle on the outer side of the lower extremity of the femur
  1608. lateral epicondyle = epicondyle near the lateral condyle of the femur
  1609. lateral geniculate = a neural structure that serves as a processing station on the way from the retina to the occipital lobe of the cerebral cortex
  1610. lateral geniculate body = a neural structure that serves as a processing station on the way from the retina to the occipital lobe of the cerebral cortex
  1611. lateral rectus = the ocular muscle whose contraction turns the eyeball outward
  1612. lateral rectus muscle = the ocular muscle whose contraction turns the eyeball outward
  1613. lateral ventricle = either of two horseshoe-shaped ventricles one in each cerebral hemisphere
  1614. latissimus dorsi = a broad flat muscle on either side of the back
  1615. leaflet = a thin triangular flap of a heart valve
  1616. left = the hand that is on the left side of the body
  1617. left atrioventricular valve = valve with two cusps
  1618. left atrium = the left upper chamber of the heart that receives blood from the pulmonary veins
  1619. left atrium of the heart = the left upper chamber of the heart that receives blood from the pulmonary veins
  1620. left brain = the cerebral hemisphere to the left of the corpus callosum that controls the right half of the body
  1621. left coronary artery = arises from the left aortic sinus
  1622. left gastric artery = a branch of the celiac artery that supplies the lesser curvature of the stomach and the abdominal part of the esophagus
  1623. left gastric vein = arises from a union of veins from the gastric cardia; runs in the lesser omentum
  1624. left hand = the hand that is on the left side of the body
  1625. left hemisphere = the cerebral hemisphere to the left of the corpus callosum that controls the right half of the body
  1626. left ventricle = the chamber on the left side of the heart that receives arterial blood from the left atrium and pumps it into the aorta
  1627. leg = a human limb
  1628. leg bone = a bone of the leg
  1629. lemniscus = a bundle of sensory nerve fibers going to the thalamus
  1630. lens = biconvex transparent body situated behind the iris in the eye
  1631. lens capsule = a tenuous mesoblastic membrane surrounding the lens of the eye
  1632. lens cortex = the tissue that surrounds the lens nucleus
  1633. lens nucleus = the central structure of the lens that is surrounded by the cortex
  1634. lens of the eye = biconvex transparent body situated behind the iris in the eye
  1635. Lente Iletin = trade names for forms of insulin that are used to treat diabetes mellitus
  1636. Lente Insulin = trade names for forms of insulin that are used to treat diabetes mellitus
  1637. lenticular nucleus = a basal ganglion shaped like a lens and including the outer reddish putamen and the inner pale yellow pallidum
  1638. lentiform nucleus = a basal ganglion shaped like a lens and including the outer reddish putamen and the inner pale yellow pallidum
  1639. lentigo = a small brownish spot (of the pigment melanin) on the skin
  1640. leptomeninges = the two innermost layers of the meninges
  1641. lesser omentum = a part of the peritoneum attached to the stomach and liver and supporting the hepatic vessels
  1642. lesser peritoneal cavity = an isolated part of the peritoneal cavity that is dorsal to the stomach
  1643. lesser rhomboid muscle = rhomboid muscle that draws the scapula toward the vertebral column and slightly upward
  1644. lethal gene = any gene that has an effect that causes the death of the organism at any stage of life
  1645. leucocyte = blood cells that engulf and digest bacteria and fungi
  1646. leucorrhea = discharge of white mucous material from the vagina
  1647. leukocyte = blood cells that engulf and digest bacteria and fungi
  1648. leukorrhea = discharge of white mucous material from the vagina
  1649. levator = a muscle that serves to lift some body part
  1650. Leydig cell = a cell in the testes that secretes the hormone testosterone
  1651. Leydig's cell = a cell in the testes that secretes the hormone testosterone
  1652. lid = either of two folds of skin that can be moved to cover or open the eye
  1653. lien = a large dark-red oval organ on the left side of the body between the stomach and the diaphragm
  1654. lienal artery = an artery that originates from the celiac trunk and supplies blood to the spleen
  1655. life form = the characteristic bodily form of a mature organism
  1656. lifeblood = the blood considered as the seat of vitality
  1657. ligament = a sheet or band of tough fibrous tissue connecting bones or cartilages or supporting muscles or organs
  1658. ligamentum teres uteri = ligament attached to the uterus on either side in front of and below the opening of the Fallopian tube and passing through the inguinal canal to the labia majora
  1659. limb = one of the jointed appendages of an animal used for locomotion or grasping: arm; leg; wing
  1660. limbic brain = a system of functionally related neural structures in the brain that are involved in emotional behavior
  1661. limbic system = a system of functionally related neural structures in the brain that are involved in emotional behavior
  1662. limbus = a border or edge of any of various body parts distinguished by color or structure
  1663. lineament = the characteristic parts of a person's face: eyes and nose and mouth and chin
  1664. lingua = a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity
  1665. lingual artery = an artery originating from the external carotid artery and supplying the under side of the tongue
  1666. lingual vein = a vein that receives blood from the tongue and the floor of the mouth and empties into the internal jugular or the facial vein
  1667. linin = an obsolete term for the network of viscous material in the cell nucleus on which the chromatin granules were thought to be suspended
  1668. linkage group = any pair of genes that tend to be transmitted together
  1669. linked genes = any pair of genes that tend to be transmitted together
  1670. liothyronine = thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity
  1671. lip = either of two fleshy folds of tissue that surround the mouth and play a role in speaking
  1672. liposome = an artificially made microscopic vesicle into which nucleic acids can be packaged
  1673. liquid body substance = the liquid parts of the body
  1674. little finger = the finger farthest from the thumb
  1675. little toe = the fifth smallest outermost toe
  1676. live body = the body of a living animal or person
  1677. liver = large and complicated reddish-brown glandular organ located in the upper right portion of the abdominal cavity; secretes bile and functions in metabolism of protein and carbohydrate and fat; synthesizes substances involved in the clotting of the blood; synthesizes vitamin A
  1678. liver spot = a type of skin disease that causes brown spots on the skin
  1679. living substance = the substance of a living cell
  1680. lobe = a somewhat rounded subdivision of a bodily organ or part
  1681. lobe of the lung = any of the three lobes of the right lung or the two lobes of the left lung
  1682. lobule = a small lobe or subdivision of a lobe
  1683. lochia = substance discharged from the vagina (cellular debris and mucus and blood) that gradually decreases in amount during the weeks following childbirth
  1684. lock = a strand or cluster of hair
  1685. locule = a small cavity or space within an organ or in a plant or animal
  1686. loculus = a small cavity or space within an organ or in a plant or animal
  1687. locus niger = a layer of deeply pigmented grey matter in the midbrain; associated with the striate body
  1688. loins = the lower part of the abdomen just above the external genital organs / the region of the hips and groin and lower abdomen
  1689. long bone = in limbs of vertebrate animals: a long cylindrical bone that contains marrow
  1690. long saphenous vein = the longest vein in the body
  1691. love handle = excess fat around the waistline
  1692. lower jaw = the jaw in vertebrates that is hinged to open the mouth
  1693. lower jawbone = the jaw in vertebrates that is hinged to open the mouth
  1694. lower respiratory tract = the bronchi and lungs
  1695. lower respiratory tract smear = any of several cytologic smears obtained from different parts of the lower respiratory tract
  1696. lumbar artery = one of four or five pairs of arteries that originate in the abdominal aorta and supply the lumbar vertebrae and the back muscles and abdominal wall
  1697. lumbar nerve = any of five pairs of spinal nerves emerging from the lumbar section of the spinal cord
  1698. lumbar plexus = a plexus of nerves formed by the ventral branches of the first four lumbar nerves / a lymphatic plexus located along the lower portion of the aorta and iliac vessels
  1699. lumbar vein = veins that drain the posterior body wall and the lumbar vertebral venous plexuses
  1700. lumbar vertebra = one of 5 vertebrae in the human vertebral column
  1701. lumbosacral plexus = a nerve plexus formed by the ventral divisions of the coccygeal and sacral and lumbar nerves
  1702. lumen = a cavity or passage in a tubular organ
  1703. lunate bone = one of the eight small wrist bones
  1704. lung = either of two saclike respiratory organs in the chest of vertebrates
  1705. lunula = the crescent-shaped area at the base of the human fingernail
  1706. lunule = the crescent-shaped area at the base of the human fingernail
  1707. Luschka's tonsil = a collection of lymphatic tissue in the throat behind the uvula
  1708. lymph = a thin coagulable fluid (similar to plasma but) containing white blood cells (lymphocytes) and chyle
  1709. lymph cell = an agranulocytic leukocyte that normally makes up a quarter of the white blood cell count but increases in the presence of infection
  1710. lymph gland = the source of lymph and lymphocytes
  1711. lymph node = the source of lymph and lymphocytes
  1712. lymph vessel = a vascular duct that carries lymph which is eventually added to the venous blood circulation
  1713. lymphatic system = the interconnected system of spaces and vessels between body tissues and organs by which lymph circulates throughout the body
  1714. lymphatic tissue = tissue making up the lymphatic system
  1715. lymphatic vessel = a vascular duct that carries lymph which is eventually added to the venous blood circulation
  1716. lymphoblast = an immature lymphocyte
  1717. lymphocyte = an agranulocytic leukocyte that normally makes up a quarter of the white blood cell count but increases in the presence of infection
  1718. lymphoid tissue = tissue making up the lymphatic system
  1719. lysosome = an organelle found in the cytoplasm of most cells
  1720. macrocyte = abnormally large red blood cell
  1721. macroglia = tissue consisting of large stellate neuroglial cells
  1722. macrophage = a large phagocyte
  1723. macula = a patch of skin that is discolored but not usually elevated
  1724. macula lutea = a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision
  1725. macular area = a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision
  1726. macule = a patch of skin that is discolored but not usually elevated
  1727. maidenhead = a fold of tissue that partly covers the entrance to the vagina of a virgin
  1728. malar = the arch of bone beneath the eye that forms the prominence of the cheek
  1729. malar bone = the arch of bone beneath the eye that forms the prominence of the cheek
  1730. male body = the body of a male human being
  1731. male chest = the chest of a man
  1732. male genital organ = external male sex organs
  1733. male genitalia = external male sex organs
  1734. male genitals = external male sex organs
  1735. male internal reproductive organ = the reproductive organs of a man
  1736. male reproductive gland = the reproductive organs of a man
  1737. male reproductive system = the reproductive system of males
  1738. malleus = the ossicle attached to the eardrum
  1739. malpighian body = the capsule that contains Bowman's capsule and a glomerulus at the expanded end of a nephron
  1740. malpighian corpuscle = the capsule that contains Bowman's capsule and a glomerulus at the expanded end of a nephron
  1741. malpighian layer = the innermost layer of the epidermis
  1742. malposed tooth = a tooth that has grown in a faulty position
  1743. mamilla = the small projection of a mammary gland
  1744. mamillary body = one of two small round structures on the undersurface of the brain that form the terminals of the anterior arches of the fornix
  1745. mamma = milk-secreting organ of female mammals
  1746. mammary gland = milk-secreting organ of female mammals
  1747. mammilla = the small projection of a mammary gland
  1748. mammillary body = one of two small round structures on the undersurface of the brain that form the terminals of the anterior arches of the fornix
  1749. man's body = the body of an adult man
  1750. mandible = the jaw in vertebrates that is hinged to open the mouth
  1751. mandibula = the jaw in vertebrates that is hinged to open the mouth
  1752. mandibular bone = the jaw in vertebrates that is hinged to open the mouth
  1753. mandibular condyle = the condyle of the ramus of the mandible that articulates with the skull
  1754. mandibular fossa = a deep concavity in the temporal bone at the root of the zygomatic arch that receives the condyle of the mandible
  1755. mandibular gland = a salivary gland inside the lower jaw on either side that produces most of the nocturnal saliva
  1756. mandibular joint = the joint between the head of the lower jawbone and the temporal bone
  1757. mandibular notch = small indentation in the middle of the lower jawbone
  1758. mane = growth of hair covering the scalp of a human being
  1759. mantle = a protective layer of epidermis in mollusks or brachiopods that secretes a substance forming the shell
  1760. manubrium = the upper part of the breastbone
  1761. manus = the (prehensile) extremity of the superior limb
  1762. marcel = a hairdo characterized by deep regular waves that are made by a heated curling iron
  1763. marrow = the fatty network of connective tissue that fills the cavities of bones
  1764. marsupium = an external abdominal pouch in most marsupials where newborn offspring are suckled
  1765. masseter = a large muscle that raises the lower jaw and is used in chewing
  1766. mast cell = a large connective tissue cell that contains histamine and heparin and serotonin which are released in allergic reactions or in response to injury or inflammation
  1767. mastocyte = a large connective tissue cell that contains histamine and heparin and serotonin which are released in allergic reactions or in response to injury or inflammation
  1768. mastoid = process of the temporal bone behind the ear at the base of the skull
  1769. mastoid bone = process of the temporal bone behind the ear at the base of the skull
  1770. mastoid process = process of the temporal bone behind the ear at the base of the skull
  1771. mastoidal = process of the temporal bone behind the ear at the base of the skull
  1772. mastoidale = the craniometric point at the lowest point of the mastoid process
  1773. material body = alternative names for the body of a human being
  1774. matrix = the formative tissue at the base of a nail / the body substance in which tissue cells are embedded
  1775. maulers = large strong hand
  1776. maw = informal terms for the mouth
  1777. maxilla = the jaw in vertebrates that is fused to the cranium
  1778. maxillary = the jaw in vertebrates that is fused to the cranium
  1779. maxillary artery = either of two arteries branching from the external carotid artery and supplying structure of the face
  1780. maxillary sinus = one of a pair of sinuses forming a cavity in the maxilla
  1781. maxillary vein = posterior continuation of the pterygoid plexus
  1782. McBurney's point = a point one third of the way along a line drawn from the hip to the umbilicus
  1783. meat hooks = large strong hand
  1784. meatus = a natural body passageway
  1785. medial condyle = a condyle on the inner side of the lower extremity of the femur
  1786. medial geniculate = a neural structure that serves as the last of a series of processing centers along the auditory pathway from the cochlea to the temporal lobe of the cerebral cortex
  1787. medial geniculate body = a neural structure that serves as the last of a series of processing centers along the auditory pathway from the cochlea to the temporal lobe of the cerebral cortex
  1788. medial rectus = the ocular muscle whose contraction turns the eyeball medially
  1789. medial rectus muscle = the ocular muscle whose contraction turns the eyeball medially
  1790. mediastinum = the part of the thoracic cavity between the lungs that contains the heart and aorta and esophagus and trachea and thymus
  1791. medulla = the inner part of an organ or structure in plant or animal / lower or hindmost part of the brain; continuous with spinal cord
  1792. medulla oblongata = lower or hindmost part of the brain; continuous with spinal cord
  1793. medulla spinalis = a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain
  1794. medullary sheath = a layer of myelin encasing (and insulating) the axons of medullated nerve fibers
  1795. medullated nerve fiber = a nerve fiber encased in a sheath of myelin
  1796. megacolon = an abnormal enlargement of the colon
  1797. megakaryocyte = a large bone marrow cell
  1798. megaloblast = abnormally large red blood cell present in pernicious anemia and folic acid deficiency
  1799. megalocyte = abnormally large red blood cell
  1800. Meibomian gland = a long sebaceous gland that lubricates the eyelids
  1801. melancholy = a humor that was once believed to be secreted by the kidneys or spleen and to cause sadness and melancholy
  1802. melanoblast = an epidermal cell that is a precursor of a melanocyte
  1803. melanocyte = a cell in the basal layer of the epidermis that produces melanin under the control of the melanocyte-stimulating hormone
  1804. melatonin = hormone secreted by the pineal gland
  1805. member = the male sex organ (`member' is a euphemism) / an external body part that projects from the body
  1806. membrane = a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
  1807. membrane bone = any bone that develops within membranous tissue without previous cartilage formation
  1808. membranous labyrinth = the sensory structures of the inner ear including the labyrinthine receptors and the cochlea
  1809. meningeal artery = any of three arteries supplying the meninges of the brain and neighboring structures
  1810. meningeal veins = veins at accompany the meningeal arteries
  1811. meninges = a membrane (one of 3) that envelops the brain and spinal cord
  1812. meninx = a membrane (one of 3) that envelops the brain and spinal cord
  1813. meniscus = a disk of cartilage that serves as a cushion between the ends of bones that meet at a joint
  1814. menorrhea = flow of blood from the uterus
  1815. menstrual blood = flow of blood from the uterus
  1816. menstrual flow = flow of blood from the uterus
  1817. mentum = a projection below the mouth of certain mollusks that resembles a chin / the protruding part of the lower jaw
  1818. mesencephalon = the middle portion of the brain
  1819. mesenteric artery = one of two branches of the aorta that pass between the two layers of the mesentery to the intestines
  1820. mesenteric plexus = a plexus of autonomic nerves
  1821. mesenteric vein = a tributary of the portal vein passing from the intestine between the two layers of mesentery
  1822. mesentery = a double layer of peritoneum that attaches to the back wall of the abdominal cavity and supports the small intestines
  1823. mesocolon = mesentery that holds the lower colon to the dorsal abdominal wall
  1824. mesophyron = a smooth prominence of the frontal bone between and above the eyebrows
  1825. mesothelium = epithelium originating in the embryonic mesoderm
  1826. metacarpal = any bone of the hand between the wrist and fingers
  1827. metacarpal artery = dorsal and palmar arteries of the hand
  1828. metacarpal bone = any bone of the hand between the wrist and fingers
  1829. metacarpal vein = dorsal and palmar veins of the hand
  1830. metacarpophalangeal joint = a joint of a finger when the fist is closed
  1831. metacarpus = the part of the hand between the carpus and phalanges
  1832. metacentric chromosome = a chromosome having two equal arms because the centromere is in median position
  1833. metaphysis = the growing part of a long bone between the diaphysis and the epiphysis
  1834. metatarsal = any bone of the foot between the ankle and the toes
  1835. metatarsal arch = the short lateral arch formed by the heads of the metatarsals
  1836. metatarsal artery = dorsal and plantar arteries to the metatarsal region of the foot
  1837. metatarsal vein = dorsal and plantar branches of veins serving the metatarsal region of the foot
  1838. metatarsus = the skeleton of the human foot between the toes and the tarsus
  1839. metencephalon = the part of the hindbrain that develops into the pons and the cerebellum
  1840. metopion = the craniometric point midway between the frontal eminences of the skull
  1841. microcyte = an abnormally small red blood cell
  1842. microglia = neuroglial tissue of mesodermal origin that can become phagocytic
  1843. microgliacyte = a cell of the microglia that may become phagocytic and collect waste products of nerve tissue
  1844. micropenis = an abnormally small penis
  1845. microphage = a neutrophil that ingests small things
  1846. microphallus = an abnormally small penis
  1847. microsome = a tiny granule in the cytoplasm that is where protein synthesis takes place under the direction of mRNA
  1848. microtubule = a microscopically small tubule
  1849. mid-calf = the middle of the calf
  1850. midbrain = the middle portion of the brain
  1851. middle = the middle area of the human torso
  1852. middle cerebral artery = one of two branches of the internal carotid artery
  1853. middle cerebral vein = either of two cerebral veins
  1854. middle ear = the main cavity of the ear
  1855. middle finger = the second finger
  1856. middle meningeal artery = branch of the maxillary artery
  1857. middle temporal vein = arises near the eye
  1858. middle thyroid vein = a vein on each side that drains the lateral part of the thyroid and empties into the internal jugular vein
  1859. midriff = a muscular partition separating the abdominal and thoracic cavities
  1860. midsection = the middle area of the human torso
  1861. milium = a small whitish lump in the skin due to a clogged sebaceous gland
  1862. milk = produced by mammary glands of female mammals for feeding their young
  1863. milk tooth = one of the first temporary teeth of a young mammal
  1864. minge = vulgar term for a woman's pubic hair or genitals
  1865. minimus = the fifth digit
  1866. mitochondrion = an organelle containing enzymes responsible for producing energy
  1867. mitral valve = valve with two cusps
  1868. mitt = the (prehensile) extremity of the superior limb
  1869. modifier = a gene that modifies the effect produced by another gene
  1870. modifier gene = a gene that modifies the effect produced by another gene
  1871. modiolus = the central conical bony pillar of the cochlea
  1872. mohawk = haircut in which the head is shaved except for a band of hair down the middle of the scalp
  1873. mohawk haircut = haircut in which the head is shaved except for a band of hair down the middle of the scalp
  1874. molar = grinding tooth with a broad crown
  1875. monoblast = a large immature monocyte normally found in bone marrow
  1876. monocyte = a type of granular leukocyte that functions in the ingestion of bacteria
  1877. mononuclear phagocyte system = a widely distributed system of free and fixed macrophages derived from bone marrow
  1878. Monro's foramen = the small opening (on both the right and left sides) that connects the third ventricle in the diencephalon with the lateral ventricle in the cerebral hemisphere
  1879. mons = a mound of fatty tissue covering the pubic area in women
  1880. mons pubis = a mound of fatty tissue covering the pubic area in women
  1881. mons veneris = a mound of fatty tissue covering the pubic area in women
  1882. Montgomery's tubercle = one of the sebaceous glands on the areolae of the breast that lubricate the breast during breast-feeding
  1883. mortise joint = a gliding joint between the distal ends of the tibia and fibula and the proximal end of the talus
  1884. mother's milk = milk secreted by a woman who has recently given birth
  1885. motilin = a gastrointestinal hormone that apparently participates in controlling smooth muscle contractions in the stomach and small intestine
  1886. motoneuron = a neuron conducting impulses outwards from the brain or spinal cord
  1887. motor area = the cortical area that influences motor movements
  1888. motor cortex = the cortical area that influences motor movements
  1889. motor end plate = the flattened end of a motor neuron that transmits neural impulses to a muscle
  1890. motor fiber = a nerve fiber that carries impulses toward the muscles or glands
  1891. motor nerve = a nerve that conveys impulses toward or to muscles or glands
  1892. motor nerve fiber = a neuron conducting impulses outwards from the brain or spinal cord
  1893. motor neuron = a neuron conducting impulses outwards from the brain or spinal cord
  1894. motor region = the cortical area that influences motor movements
  1895. moustache = an unshaved growth of hair on the upper lip
  1896. moustachio = a large bushy moustache
  1897. mouth = the externally visible part of the oral cavity on the face and the system of organs surrounding the opening / the opening through which food is taken in and vocalizations emerge
  1898. MPS = a widely distributed system of free and fixed macrophages derived from bone marrow
  1899. mucosa = mucus-secreting membrane lining all body cavities or passages that communicate with the exterior
  1900. mucous membrane = mucus-secreting membrane lining all body cavities or passages that communicate with the exterior
  1901. mucous secretion = protective secretion of the mucous membranes; in the gut it lubricates the passage of food and protects the epithelial cells
  1902. mucus = protective secretion of the mucous membranes; in the gut it lubricates the passage of food and protects the epithelial cells
  1903. mug = the human face
  1904. mummy = a body embalmed and dried and wrapped for burial
  1905. muscle = animal tissue consisting predominantly of contractile cells / one of the contractile organs of the body
  1906. muscle cell = an elongated contractile cell that forms the muscles of the body
  1907. muscle fiber = an elongated contractile cell that forms the muscles of the body
  1908. muscle fibre = an elongated contractile cell that forms the muscles of the body
  1909. muscle system = the muscular system of an organism
  1910. muscular structure = the muscular system of an organism
  1911. muscular tissue = animal tissue consisting predominantly of contractile cells
  1912. musculature = the muscular system of an organism
  1913. musculophrenic artery = an artery that supplies the abdomen and intercostal muscles
  1914. musculophrenic vein = veins that drain the upper abdominal wall and the lower intercostal spaces and the abdomen
  1915. musculoskeletal system = the system of muscles and tendons and ligaments and bones and joints and associated tissues that move the body and maintain its form
  1916. musculospiral nerve = largest branch of the brachial plexus
  1917. musculus = one of the contractile organs of the body
  1918. musculus abductor digiti minimi manus = the abductor muscle of the little finger
  1919. musculus abductor digiti minimi pedis = the abductor muscles of the little toe
  1920. musculus abductor hallucis = the abductor muscle of the great toe
  1921. musculus abductor pollicis = the abductor muscle of the thumb
  1922. musculus adductor brevis = the short adductor muscle of the thigh
  1923. musculus adductor hallucis = the adductor muscle of the great toe
  1924. musculus adductor longus = the long adductor muscle of the thigh
  1925. musculus adductor magnus = the muscle that adducts and extends the thigh
  1926. musculus anconeus = the muscle that extends the forearm and abducts the ulna in pronation of the wrist
  1927. musculus articularis cubiti = a small branch of the triceps that inserts into the capsule of the elbow joint
  1928. musculus articularis genus = the articular muscle of the knee
  1929. musculus biceps brachii = a muscle that flexes and supinates the forearm
  1930. musculus biceps femoris = the biceps muscle of the thigh
  1931. musculus buccinator = a muscle that flattens the cheek and retracts the angle of the mouth
  1932. musculus deltoideus = a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm
  1933. musculus intercostalis = muscles between the ribs
  1934. musculus obliquus externus abdominis = a diagonally arranged abdominal muscle on either side of the torso
  1935. musculus pectoralis = either of two large muscles of the chest
  1936. musculus pectoralis major = a skeletal muscle that adducts and rotates the arm
  1937. musculus pectoralis minor = a skeletal muscle that draws down the scapula or raises the ribs
  1938. musculus quadriceps femoris = a muscle of the thigh that extends the leg
  1939. musculus rhomboideus major = rhomboid muscle that draws the scapula toward the spinal column
  1940. musculus rhomboideus minor = rhomboid muscle that draws the scapula toward the vertebral column and slightly upward
  1941. musculus sartorius = a muscle in the thigh that helps to rotate the leg into the sitting position assumed by a tailor
  1942. musculus scalenus = any of four pairs of muscles extending from the cervical vertebrae to the second rib
  1943. musculus serratus anterior = muscles that rotate the scapula and elevate the rib cage
  1944. musculus serratus posterior = skeletal muscle that draws the rib cage backward and downward
  1945. musculus sphincter ani = the sphincter muscle of the anus
  1946. musculus sphincter ani externus = an external ring of striated muscle surrounding the anus
  1947. musculus sphincter ani internus = an internal ring of smooth muscle formed by circular fibers of the rectum
  1948. musculus sphincter ductus choledochi = the smooth muscle sphincter of the common bile duct
  1949. musculus sphincter ductus pancreatici = the smooth muscle sphincter of the main pancreatic duct
  1950. musculus sphincter pupillae = a ring of smooth muscle surrounding the iris
  1951. musculus sphincter pylori = the sphincter muscle of the pylorus that separates the stomach from the duodenum
  1952. musculus sphincter urethrae = a striated sphincter muscle that constricts the urethra
  1953. musculus sphincter vesicae = the sphincter muscle of the urinary bladder
  1954. musculus sternocleidomastoideus = one of two thick muscles running from the sternum and clavicle to the mastoid and occipital bone; turns head obliquely to the opposite side
  1955. musculus temporalis = muscle extending from the temporal fossa to the coronoid process of the mandible
  1956. musculus teres major = teres muscle that moves the arm and rotates it medially
  1957. musculus teres minor = teres muscle that adducts the arm and rotates it laterally
  1958. musculus tibialis = either of two skeletal muscle in each leg arising from the tibia
  1959. musculus transversalis abdominis = a flat muscle with transverse fibers that forms the anterior and lateral walls of the abdominal cavity
  1960. musculus trapezius = either of two flat triangular muscles of the shoulder and upper back that are involved in moving the shoulders and arms
  1961. musculus triceps brachii = the skeletal muscle having three origins that extends the forearm when it contracts
  1962. mustache = an unshaved growth of hair on the upper lip
  1963. mustachio = a large bushy moustache
  1964. mutant gene = a gene that has changed so that the normal transmission and expression of a trait is affected
  1965. mutton chop = facial hair that has grown down the side of a man's face in front of the ears
  1966. myelencephalon = the posterior part of the hindbrain in developing vertebrates
  1967. myelin sheath = a layer of myelin encasing (and insulating) the axons of medullated nerve fibers
  1968. myelinated nerve fiber = a nerve fiber encased in a sheath of myelin
  1969. myeloblast = a precursor of leukocytes that normally occurs only in bone marrow
  1970. myelocyte = an immature leukocyte normally found in bone marrow
  1971. myenteric plexus = a plexus of unmyelinated fibers and postganglionic autonomic cell bodies in the muscular coat of the esophagus and stomach and intestines
  1972. myocardium = the middle muscular layer of the heart wall
  1973. myofibril = one of many contractile filaments that make up a striated muscle fiber
  1974. myofibrilla = one of many contractile filaments that make up a striated muscle fiber
  1975. myometrium = the smooth muscle forming the wall of the uterus
  1976. myoneural junction = the junction between a nerve fiber and the muscle it supplies
  1977. myringa = the membrane in the ear that vibrates to sound
  1978. nabothian gland = one of many small glands of the uterine cervix that secrete mucus
  1979. nail = horny plate covering and protecting part of the dorsal surface of the digits
  1980. naked eye = the eye unaided by any optical instrument that alters the power of vision or alters the apparent size or distance of objects
  1981. nape = the back side of the neck
  1982. naris = any of the openings to the nasal cavities that allow air to flow through the cavities to the pharynx
  1983. nasal = an elongated rectangular bone that forms the bridge of the nose
  1984. nasal bone = an elongated rectangular bone that forms the bridge of the nose
  1985. nasal canthus = the inner corner of the eye
  1986. nasal cavity = either of the two cavities lying between the floor of the cranium and the roof of the mouth and extending from the face to the pharynx
  1987. nasal concha = one of several turbinate bones in the nasal cavity
  1988. nasal meatus = the passages in the nasal cavity formed by the projections of the nasal conchae
  1989. nasal septum = a partition of bone and cartilage between the nasal cavities
  1990. nasal sinus = any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with the lining of the nasal cavities
  1991. nasion = the craniometric point at the bridge of the nose where the frontal and nasal bones of the skull meet
  1992. nasofrontal vein = a vein located in the anterior medial part of the orbit
  1993. nasolacrimal duct = a duct that carries tears from the lacrimal sac to the nasal cavity
  1994. nasopharynx = cavity forming the upper part of the pharynx
  1995. nates = the fleshy part of the human body that you sit on
  1996. navel = a scar where the umbilical cord was attached
  1997. navicular = the largest wrist bone on the thumb side
  1998. neck = the part of an organism (human or animal) that connects the head to the rest of the body
  1999. neck bone = one of 7 vertebrae in the human spine located in the neck region
  2000. neencephalon = the part of the brain having the most recent phylogenetic origin
  2001. neocortex = the cortical part of the neencephalon
  2002. neoencephalon = the part of the brain having the most recent phylogenetic origin
  2003. neopallium = the cortical part of the neencephalon
  2004. neoplastic cell = a cell that is part of tumor
  2005. nephron = any of the small tubules that are the excretory units of the vertebrate kidney
  2006. nerve = any bundle of nerve fibers running to various organs and tissues of the body
  2007. nerve cell = a cell that is specialized to conduct nerve impulses
  2008. nerve center = a cluster of nerve cells governing a specific bodily process
  2009. nerve centre = a cluster of nerve cells governing a specific bodily process
  2010. nerve end = the terminal structure of an axon that does not end at a synapse
  2011. nerve ending = the terminal structure of an axon that does not end at a synapse
  2012. nerve fiber = a threadlike extension of a nerve cell
  2013. nerve fibre = a threadlike extension of a nerve cell
  2014. nerve pathway = a bundle of myelinated nerve fibers following a path through the brain
  2015. nerve plexus = a network of intersecting nerves
  2016. nerve tissue = tissue composed of neurons
  2017. nerve tract = a bundle of myelinated nerve fibers following a path through the brain
  2018. nervii olfactorii = a collective term for numerous olfactory filaments in the nasal mucosa
  2019. nervous system = the sensory and control apparatus consisting of a network of nerve cells
  2020. nervous tissue = tissue composed of neurons
  2021. nervus = any bundle of nerve fibers running to various organs and tissues of the body
  2022. nervus abducens = a small motor nerve supplying the lateral rectus muscle of the eye
  2023. nervus accessorius = arises from two sets of roots (cranial and spinal) that unite to form the nerve
  2024. nervus coccygeus = the lowest pair of spinal nerves
  2025. nervus facialis = cranial nerve that supplies facial muscles
  2026. nervus femoralis = one of a pair of nerves that originate from lumbar nerves and supply the muscles and skin of the anterior part of the thigh
  2027. nervus glossopharyngeus = sensory nerve to the pharynx and back of the tongue; motor fibers innervate muscles that elevate the pharynx and larynx
  2028. nervus hypoglosus = supplies intrinsic muscles of the tongue and other tongue muscles
  2029. nervus ischiadicus = arises from the sacral plexus and passes about halfway down the thigh where it divides into the common peroneal and tibial nerves
  2030. nervus oculomotorius = supplies extrinsic muscles of the eye
  2031. nervus opticus = the cranial nerve that serves the retina
  2032. nervus phrenicus = one of a pair of nerves that arises from cervical spinal roots and passes down the thorax to innervate the diaphragm and control breathing
  2033. nervus radialis = largest branch of the brachial plexus
  2034. nervus saphenus = a branch of the femoral nerve that supplies cutaneous branches to the inner aspect of the leg and foot
  2035. nervus spinalis = any of the 31 pairs of nerves emerging from each side of the spinal cord
  2036. nervus trigeminus = the main sensory nerve of the face and motor nerve for the muscles of mastication
  2037. nervus ulnaris = a nerve running along the inner side of the arm and passing near the elbow
  2038. nervus vagus = a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera
  2039. nervus vestibulocochlearis = a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea
  2040. neural arch = a structure arising dorsally from a vertebral centrum and enclosing the spinal cord
  2041. neural net = any network of neurons or nuclei that function together to perform some function in the body
  2042. neural network = any network of neurons or nuclei that function together to perform some function in the body
  2043. neural structure = a structure that is part of the nervous system
  2044. neurilemma = thin membranous sheath around a nerve fiber
  2045. neuroblast = a cell from which a nerve cell develops
  2046. neuroepithelium = epithelium associated with special sense organs and containing sensory nerve endings
  2047. neuroglia = sustentacular tissue that surrounds and supports neurons in the central nervous system
  2048. neurogliacyte = a cell of the neuroglia
  2049. neuroglial cell = a cell of the neuroglia
  2050. neurohormone = a hormone that is released by nerve impulses
  2051. neurohypophysis = the posterior lobe of the pituitary body
  2052. neurolemma = thin membranous sheath around a nerve fiber
  2053. neuromuscular junction = the junction between a nerve fiber and the muscle it supplies
  2054. neuron = a cell that is specialized to conduct nerve impulses
  2055. neuropil = the complex network of unmyelinated axones, dendrites, and glial branches that form the bulk of the central nervous system's grey matter and in which nerve cell bodies are embedded
  2056. neuropile = the complex network of unmyelinated axones, dendrites, and glial branches that form the bulk of the central nervous system's grey matter and in which nerve cell bodies are embedded
  2057. neutrophil = the chief phagocytic leukocyte
  2058. neutrophile = the chief phagocytic leukocyte
  2059. nictitating membrane = a protective fold of skin in the eyes of reptiles and birds and some mammals
  2060. ninth cranial nerve = sensory nerve to the pharynx and back of the tongue; motor fibers innervate muscles that elevate the pharynx and larynx
  2061. nipple = the small projection of a mammary gland
  2062. node = any bulge or swelling of an anatomical structure or part / the source of lymph and lymphocytes
  2063. nodes of Ranvier = small gaps in the myelin sheath of medullated axons
  2064. nodule = a small node
  2065. noggin = informal terms for a human head
  2066. nonallele = genes that are not competitors at the same locus
  2067. noodle = informal terms for a human head
  2068. noradrenaline = a catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses
  2069. norepinephrine = a catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses
  2070. nose = the organ of smell and entrance to the respiratory tract
  2071. nostril = either one of the two external openings to the nasal cavity in the nose
  2072. nozzle = informal terms for the nose
  2073. nucha = the back side of the neck
  2074. nucleolar organiser = the particular part of a chromosome that is associated with a nucleolus after nuclear division
  2075. nucleolar organizer = the particular part of a chromosome that is associated with a nucleolus after nuclear division
  2076. nucleole = a small round body of protein in a cell nucleus
  2077. nucleolus = a small round body of protein in a cell nucleus
  2078. nucleolus organiser = the particular part of a chromosome that is associated with a nucleolus after nuclear division
  2079. nucleolus organizer = the particular part of a chromosome that is associated with a nucleolus after nuclear division
  2080. nucleoplasm = the protoplasm that constitutes the nucleus of a cell
  2081. nucleus = the central structure of the lens that is surrounded by the cortex / a part of the cell containing DNA and RNA and responsible for growth and reproduction / any histologically identifiable mass of neural cell bodies in the brain or spinal cord
  2082. nucleus niger = a layer of deeply pigmented grey matter in the midbrain; associated with the striate body
  2083. nut = one of the two male reproductive glands that produce spermatozoa and secrete androgens
  2084. nutrient artery = an artery that supplies the medullary cavity of the long bone
  2085. O = the blood group whose red cells carry neither the A nor B antigens
  2086. obelion = the craniometric point on the sagittal suture near the lamboid suture
  2087. oblique = a diagonally arranged abdominal muscle on either side of the torso
  2088. oblique vein of the left atrium = a tributary of the coronary sinus
  2089. obturator vein = a vein formed by the union of tributaries that drain the hip joints and thigh muscles
  2090. occipital bone = a saucer-shaped membrane bone that forms the back of the skull
  2091. occipital cortex = that part of the cerebral cortex in either hemisphere of the brain lying in the back of the head
  2092. occipital gyrus = any of the convolutions of the outer surface of the occipital lobe of the cerebrum
  2093. occipital lobe = that part of the cerebral cortex in either hemisphere of the brain lying in the back of the head
  2094. occipital protuberance = prominence on the outer surface of the occipital bone
  2095. occipital vein = a vein that drains the occipital region
  2096. occipitomastoid suture = the suture between the occipital and the temporal bones
  2097. occiput = back part of the head or skull
  2098. ocellus = an eye having a single lens
  2099. ocular muscle = one of the small muscles of the eye that serve to rotate the eyeball
  2100. oculomotor = supplies extrinsic muscles of the eye
  2101. oculomotor nerve = supplies extrinsic muscles of the eye
  2102. oculus = the organ of sight
  2103. oculus dexter = the right eye
  2104. oculus sinister = the left eye
  2105. OD = the right eye
  2106. odontoid process = a toothlike process at the back of 2nd vertebra of the neck
  2107. oesophageal veins = small veins from the esophagus emptying into the brachiocephalic vein or the azygos veins
  2108. oesophagogastric junction = the junction between the esophagus and the stomach epithelium
  2109. oesophagus = the passage between the pharynx and the stomach
  2110. oil gland = a gland that secretes oil
  2111. olecranon = process of the ulna that forms the outer bump of the elbow and fits into the fossa of the humerus when the arm is extended
  2112. olecranon process = process of the ulna that forms the outer bump of the elbow and fits into the fossa of the humerus when the arm is extended
  2113. olfactory brain = a center in the cerebral hemispheres that governs the sense of smell in lower animals
  2114. olfactory bulb = one of two enlargements at the terminus of the olfactory nerve at the base of the brain just above the nasal cavities
  2115. olfactory nerve = a collective term for numerous olfactory filaments in the nasal mucosa
  2116. olfactory organ = the organ of smell and entrance to the respiratory tract
  2117. oligodendria = tissue consisting of glial cells with sheetlike processes that form the myelin sheath of nerve fibers
  2118. oligodendrocyte = a cell of the oligodendroglia
  2119. oligodendroglia = tissue consisting of glial cells with sheetlike processes that form the myelin sheath of nerve fibers
  2120. omental bursa = an isolated part of the peritoneal cavity that is dorsal to the stomach
  2121. omentum = a fold of peritoneum supporting the viscera
  2122. ommatidium = any of the numerous small cone-shaped eyes that make up the compound eyes of some arthropods
  2123. omphalos = a scar where the umbilical cord was attached
  2124. omphalus = a scar where the umbilical cord was attached
  2125. oncogene = a gene that disposes normal cells to change into cancerous tumor cells
  2126. onyxis = toenail having its free tip or edges embedded in the surrounding flesh
  2127. oocyte = a female gametocyte that develops into an ovum after two meiotic divisions
  2128. ootid = mature ovum after penetration by sperm but before the formation of a zygote
  2129. opening = an aperture or hole that opens into a bodily cavity
  2130. operator gene = a gene that activates the production of messenger RNA by adjacent structural genes
  2131. operon = a segment of DNA containing adjacent genes including structural genes and an operator gene and a regulatory gene
  2132. ophryon = the craniometric point in the midline of the forehead immediately above the orbits
  2133. ophthalmic artery = a branch of the internal carotid artery that supplies the eye and neighboring structures
  2134. ophthalmic vein = either of two veins that serve the eye
  2135. optic = the organ of sight
  2136. optic chiasm = the crossing of the optic nerves from the two eyes at the base of the brain
  2137. optic chiasma = the crossing of the optic nerves from the two eyes at the base of the brain
  2138. optic disc = the point where the optic nerve enters the retina
  2139. optic disk = the point where the optic nerve enters the retina
  2140. optic nerve = the cranial nerve that serves the retina
  2141. optic radiation = a nerve pathway from the lateral geniculate body to the visual cortex
  2142. optic tract = the cranial nerve that serves the retina
  2143. oral cavity = the opening through which food is taken in and vocalizations emerge
  2144. oral fissure = the opening through which food is taken in and vocalizations emerge
  2145. oral smear = alimentary tract smear of material obtained from the mouth
  2146. orb = the ball-shaped capsule containing the vertebrate eye
  2147. orbit = the bony cavity in the skull containing the eyeball
  2148. orbital cavity = the bony cavity in the skull containing the eyeball
  2149. orbital point = the craniometric point at the lowest point on the lower edge of the orbit
  2150. orbitale = the craniometric point at the lowest point on the lower edge of the orbit
  2151. orchis = one of the two male reproductive glands that produce spermatozoa and secrete androgens
  2152. organ = a fully differentiated structural and functional unit in an animal that is specialized for some particular function
  2153. organ of Corti = the hearing organ of the inner ear
  2154. organ of hearing = the part of the ear that is responsible for sensations of sound
  2155. organ of speech = any of the organs involved in speech production
  2156. organelle = a specialized part of a cell
  2157. organic structure = the entire physical structure of an organism
  2158. orifice = an aperture or hole that opens into a bodily cavity
  2159. oropharynx = cavity formed by the pharynx at the back of the mouth
  2160. os = rigid connective tissue that makes up the skeleton of vertebrates / a mouth or mouthlike opening / the left eye
  2161. os breve = a bone that is of approximately equal dimension in all directions
  2162. os capitatum = the wrist bone with a rounded head shape that articulates with the 3rd metacarpus
  2163. os frontale = the large cranial bone forming the front part of the cranium: includes the upper part of the orbits
  2164. os hamatum = the wrist bone in line with the 4th and 5th fingers
  2165. os hyoideum = a U-shaped bone at the base of the tongue that supports the tongue muscles
  2166. os ischii = one of the three sections of the hipbone
  2167. os longum = in limbs of vertebrate animals: a long cylindrical bone that contains marrow
  2168. os lunatum = one of the eight small wrist bones
  2169. os nasale = an elongated rectangular bone that forms the bridge of the nose
  2170. os palatinum = either of two irregularly shaped bones that form the back of the hard palate and helps to form the nasal cavity and the floor of the orbits
  2171. os pisiforme = a small wrist bone that articulates only with the triquetral
  2172. os pubis = one of the three sections of the hipbone
  2173. os scaphoideum = the largest wrist bone on the thumb side
  2174. os sesamoideum = any of several small round bones formed in a tendon where it passes over a joint
  2175. os sphenoidale = butterfly-shaped bone at the base of the skull
  2176. os tarsi fibulare = the largest tarsal bone
  2177. os temporale = a thick bone forming the side of the human cranium and encasing the inner ear
  2178. os trapezium = the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals
  2179. os trapezoideum = the wrist bone between the trapezium and the capitate bones
  2180. os triquetrum = a wrist bone that articulates with the pisiform and hamate and lunate bones
  2181. os zygomaticum = the arch of bone beneath the eye that forms the prominence of the cheek
  2182. osmoreceptor = sensory end organ that responds to changes in osmotic pressure
  2183. osseous labyrinth = cavity in the petrous part of the temporal bone that contains the membranous labyrinth
  2184. ossicle = a small bone
  2185. ossiculum = a small bone
  2186. osteoblast = a cell from which bone develops
  2187. osteoclast = cell that functions in the breakdown and resorption of bone tissue
  2188. osteocyte = mature bone cell
  2189. osteophyte = small abnormal bony outgrowth
  2190. otic ganglion = an autonomic ganglion whose postganglionic fibers are distributed to the parotid gland
  2191. otoganglion = an autonomic ganglion whose postganglionic fibers are distributed to the parotid gland
  2192. outer ear = the part of the ear visible externally
  2193. outgrowth = a natural prolongation or projection from a part of an organism either animal or plant
  2194. oval window = fenestra that has the base of the stapes attached to it
  2195. ovarian artery = the artery that branches from the aorta and supplies blood to the ovaries
  2196. ovarian vein = one of the veins that drain the ovaries; the right opens into the inferior vena cava
  2197. ovary = one of usually two organs that produce ova and secrete estrogen and progesterone
  2198. overlip = the upper lip
  2199. oviduct = either of a pair of tubes conducting the egg from the ovary to the uterus
  2200. ovotestis = hermaphroditic gonad that contains both testicular and ovarian tissue
  2201. ovule = a small or immature ovum
  2202. ovum = the female reproductive cell
  2203. oxytocin = hormone secreted by the posterior pituitary gland
  2204. pacemaker = a specialized bit of heart tissue that controls the heartbeat
  2205. Pacinian corpuscle = a specialized bulblike nerve ending located in the subcutaneous tissue of the skin
  2206. packed cells = a preparation of blood cells separated from the liquid plasma
  2207. pageboy = a smooth hair style with the ends of the hair curled inward
  2208. palaeencephalon = the more primitive parts of the brain phylogenetically
  2209. palate = the upper surface of the mouth that separates the oral and nasal cavities
  2210. palatine = either of two irregularly shaped bones that form the back of the hard palate and helps to form the nasal cavity and the floor of the orbits
  2211. palatine artery = one of several arteries supplying the face
  2212. palatine bone = either of two irregularly shaped bones that form the back of the hard palate and helps to form the nasal cavity and the floor of the orbits
  2213. palatine raphe = the seam at the middle of the hard palate
  2214. palatine tonsil = either of two masses of lymphatic tissue one on each side of the oral pharynx
  2215. palatine vein = a vein that drains the region of the palate and empties into the facial vein
  2216. paleencephalon = the more primitive parts of the brain phylogenetically
  2217. paleocerebellum = the anterior lobe of the cerebellum which was one of the earliest parts of the hindbrain to develop in mammals
  2218. paleocortex = the olfactory cortex of the cerebrum
  2219. paleoencephalon = the more primitive parts of the brain phylogenetically
  2220. paleostriatum = the inner pale yellow part of the lenticular nucleus
  2221. pallidum = the inner pale yellow part of the lenticular nucleus
  2222. pallium = a protective layer of epidermis in mollusks or brachiopods that secretes a substance forming the shell / the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
  2223. palm = the inner surface of the hand from the wrist to the base of the fingers
  2224. palpebra = either of two folds of skin that can be moved to cover or open the eye
  2225. palpebra conjunctiva = the part of the conjunctiva lining the posterior surface of the eyelids
  2226. pancreas = a large elongated exocrine gland located behind the stomach
  2227. pancreatic artery = a branch of the splenic artery that supplies the pancreas
  2228. pancreatic duct = a duct connecting the pancreas with the intestine
  2229. pancreatic juice = a fluid secreted into the duodenum by the pancreas
  2230. pancreatic vein = veins draining the pancreas and emptying into the superior mesenteric and splenic veins
  2231. pap = the small projection of a mammary gland
  2232. Pap smear = a sample of secretions and superficial cells of the uterine cervix and uterus
  2233. Papanicolaou smear = a sample of secretions and superficial cells of the uterine cervix and uterus
  2234. papilla = a small projection of tissue at the base of a hair or tooth or feather / a small nipple-shaped protuberance concerned with taste, touch, or smell
  2235. papillary muscle = any of several muscles associated with the atrioventricular valves
  2236. paraduodenal smear = alimentary tract smear of material obtained from the duodenum
  2237. parafovea = area of the retina immediately surrounding the fovea
  2238. paranasal sinus = any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with the lining of the nasal cavities
  2239. parasympathetic = originates in the brain stem and lower part of the spinal cord; opposes physiological effects of the sympathetic nervous system: stimulates digestive secretions; slows the heart; constricts the pupils
  2240. parasympathetic nervous system = originates in the brain stem and lower part of the spinal cord; opposes physiological effects of the sympathetic nervous system: stimulates digestive secretions; slows the heart; constricts the pupils
  2241. parathormone = hormone synthesized and released into the blood stream by the parathyroid glands
  2242. parathyroid = any one of four endocrine glands situated above or within the thyroid gland
  2243. parathyroid gland = any one of four endocrine glands situated above or within the thyroid gland
  2244. parathyroid hormone = hormone synthesized and released into the blood stream by the parathyroid glands
  2245. paraumbilical vein = small veins arising in skin around the navel
  2246. parenchyma = animal tissue that constitutes the essential part of an organ as contrasted with e.g. connective tissue and blood vessels
  2247. paries = a layer (a lining or membrane) that encloses a structure
  2248. parietal bone = either of two skull bones between the frontal and occipital bones and forming the top and sides of the cranium
  2249. parietal cortex = that part of the cerebral cortex in either hemisphere of the brain lying below the crown of the head
  2250. parietal gyrus = any of the convolutions of the outer surface of the parietal lobe of the cerebrum
  2251. parietal lobe = that part of the cerebral cortex in either hemisphere of the brain lying below the crown of the head
  2252. parietal pericardium = the tough outermost layer of the pericardium that is attached to the diaphragm and the sternum
  2253. parietal pleura = pleura that lines the inner chest walls and covers the diaphragm
  2254. parieto-occipital fissure = a sulcus near the posterior end of each hemisphere that separates the parietal lobes and the occipital lobes in both hemispheres
  2255. parieto-occipital sulcus = a sulcus near the posterior end of each hemisphere that separates the parietal lobes and the occipital lobes in both hemispheres
  2256. parietomastoid suture = the suture between the parietal and the temporal bones
  2257. parotid gland = a large salivary gland that produces 50% of daytime saliva
  2258. parotid vein = parotid branches of the facial vein
  2259. pars anterior = the anterior part of the anterior pituitary
  2260. pars distilis = the anterior part of the anterior pituitary
  2261. pars intermedia = a thin piece of tissue that has become part of the posterior pituitary
  2262. pars nervosa = the posterior lobe of the pituitary body
  2263. part = a line of scalp that can be seen when sections of hair are combed in opposite directions
  2264. parthenote = a cell resulting from parthenogenesis
  2265. parting = a line of scalp that can be seen when sections of hair are combed in opposite directions
  2266. partition = a structure that separates areas in an organism
  2267. passage = a path or channel or duct through or along which something may pass
  2268. passageway = a path or channel or duct through or along which something may pass
  2269. pate = the top of the head
  2270. patella = a small flat triangular bone in front of the knee that protects the knee joint
  2271. patent ductus arteriosus = a ductus arteriosus that failed to close at birth
  2272. pathway = a bundle of myelinated nerve fibers following a path through the brain
  2273. paunch = a protruding abdomen
  2274. paw = the (prehensile) extremity of the superior limb
  2275. pearly = informal terms for a human `tooth'
  2276. pecker = obscene terms for penis
  2277. pecs = either of two large muscles of the chest
  2278. pectoral = either of two large muscles of the chest
  2279. pectoral arch = the bony arch formed by the collarbones and shoulder blades in humans
  2280. pectoral girdle = a skeletal support to which the forelimbs of vertebrates are attached
  2281. pectoral muscle = either of two large muscles of the chest
  2282. pectoral vein = veins that drain the pectoral muscles and empty into the subclavian vein
  2283. pectoralis = either of two large muscles of the chest
  2284. pectoralis major = a skeletal muscle that adducts and rotates the arm
  2285. pectoralis minor = a skeletal muscle that draws down the scapula or raises the ribs
  2286. pectus = the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates
  2287. pedal extremity = the extremity of the limb in vertebrates
  2288. peduncle = a bundle of myelinated neurons joining different parts of the brain
  2289. peeper = an informal term referring to the eye
  2290. peg = informal terms for the leg
  2291. pelvic arch = the structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebrates
  2292. pelvic cavity = the space bounded by the bones of the pelvis and containing the pelvic viscera
  2293. pelvic girdle = the structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebrates
  2294. pelvis = a structure shaped like a funnel in the outlet of the kidney into which urine is discharged before passing into the ureter / the structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebrates
  2295. penis = the male sex organ
  2296. perforated eardrum = an eardrum with a hole or tear in it
  2297. perforating vein = veins that accompany the perforating arteries; drain leg muscles
  2298. periarterial plexus = an autonomic plexus that accompanies an artery
  2299. pericardial cavity = the space between the layers of the pericardium that contains fluid that lubricates the membrane surfaces and allows easy heart movement
  2300. pericardial sac = the membrane surrounding the heart
  2301. pericardial space = the space between the layers of the pericardium that contains fluid that lubricates the membrane surfaces and allows easy heart movement
  2302. pericardial vein = several small veins from the pericardium
  2303. pericardium = a serous membrane with two layers that surrounds the heart
  2304. perilymph = the bodily fluid that fills the space between the bony labyrinth and the membranous labyrinth of the inner ear
  2305. perimysium = the sheath of connective tissue that covers a bundle of muscle fibers
  2306. perineal artery = a branch of the internal pudendal artery that supplies superficial structures of the perineum
  2307. perineum = the general region between the anus and the genital organs
  2308. perineurium = the sheath of connective tissue that covers a bundle of nerve fibers
  2309. periosteum = a dense fibrous membrane covering the surface of bones (except at their extremities) and serving as an attachment for tendons and muscles
  2310. peripheral nervous system = the section of the nervous system lying outside the brain and spinal cord
  2311. perithelium = tissue layer around small blood vessels
  2312. peritoneal cavity = the interior of the peritoneum
  2313. peritoneum = a transparent membrane that lines the abdominal cavity in mammals and covers most of the viscera
  2314. perm = a series of waves in the hair made by applying heat and chemicals
  2315. permanent = a series of waves in the hair made by applying heat and chemicals
  2316. permanent tooth = any of the 32 teeth that replace the deciduous teeth of early childhood and (with luck) can last until old age
  2317. permanent wave = a series of waves in the hair made by applying heat and chemicals
  2318. peroneal vein = accompany the peroneal arteries
  2319. peroneus = muscle of the lower leg that is involved in moving the foot
  2320. person = a human body
  2321. perspiration = salty fluid secreted by sweat glands
  2322. pes = the part of the leg of a human being below the ankle joint
  2323. pes planus = a foot afflicted with a fallen arch
  2324. Peter's gland = any of several lymph nodes in the walls of the intestines near the junction of the ileum and colon
  2325. Peyer's patch = any of several lymph nodes in the walls of the intestines near the junction of the ileum and colon
  2326. phagocyte = a cell that engulfs and digests debris and invading microorganisms
  2327. phalanx = any of the bones of the fingers or toes
  2328. phallus = the male sex organ
  2329. pharyngeal recess = a small recess in the wall of the pharynx
  2330. pharyngeal tonsil = a collection of lymphatic tissue in the throat behind the uvula
  2331. pharyngeal vein = veins from the pharyngeal plexus that empty into the internal jugular vein
  2332. pharynx = the passage to the stomach and lungs
  2333. phiz = the human face
  2334. phlegm = expectorated matter; saliva mixed with discharges from the respiratory passages
  2335. phrenic nerve = one of a pair of nerves that arises from cervical spinal roots and passes down the thorax to innervate the diaphragm and control breathing
  2336. phrenic vein = either of two veins that drain the diaphragm
  2337. physical body = alternative names for the body of a human being
  2338. physiognomy = the human face
  2339. physiological sphincter = a sphincter that is not recognizable at autopsy because its resting arrangement cannot be distinguished from adjacent tissue
  2340. physique = alternative names for the body of a human being
  2341. pia mater = the highly vascular innermost of the 3 meninges
  2342. pigtail = a plait of braided hair
  2343. pile = fine soft dense hair
  2344. pilus = any of the cylindrical filaments characteristically growing from the epidermis of a mammal
  2345. pin = informal terms for the leg
  2346. pin curl = a curl of hair made by dampening a strand of hair and curling it and holding the curl with a clip or bobby pin
  2347. pineal body = a small endocrine gland in the brain; situated beneath the back part of the corpus callosum
  2348. pineal eye = a sensory structure capable of light reception located on the dorsal side of the diencephalon in various reptiles
  2349. pineal gland = a small endocrine gland in the brain; situated beneath the back part of the corpus callosum
  2350. pinguecula = a slightly elevated elastic tissue deposit in the conjunctiva that may extend to the cornea but does not cover it
  2351. pinkie = the finger farthest from the thumb
  2352. pinky = the finger farthest from the thumb
  2353. pinna = the externally visible cartilaginous structure of the external ear
  2354. piriform area = pear-shaped neural structure on either side of the brain in the rhinencephalon
  2355. piriform lobe = pear-shaped neural structure on either side of the brain in the rhinencephalon
  2356. pisiform = a small wrist bone that articulates only with the triquetral
  2357. pisiform bone = a small wrist bone that articulates only with the triquetral
  2358. pit of the stomach = a slight depression in the midline just below the sternum
  2359. Pitocin = hormone secreted by the posterior pituitary gland
  2360. Pitressin = hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus
  2361. pituitary = the master gland of the endocrine system
  2362. pituitary body = the master gland of the endocrine system
  2363. pituitary gland = the master gland of the endocrine system
  2364. pivot joint = a freely moving joint in which movement is limited to rotation
  2365. placenta = the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus
  2366. plague spot = a spot on the skin characteristic of the plague
  2367. plait = a hairdo formed by braiding or twisting the hair
  2368. plaque = a small abnormal patch on or inside the body
  2369. plasm = the colorless watery fluid of the blood and lymph that contains no cells, but in which the blood cells (erythrocytes, leukocytes, and thrombocytes) are suspended / the protoplasm of the germ cells that contains chromosomes and genes
  2370. plasma = the colorless watery fluid of the blood and lymph that contains no cells, but in which the blood cells (erythrocytes, leukocytes, and thrombocytes) are suspended
  2371. plasma cell = a cell that develops from a B lymphocyte in reaction to a specific antigen
  2372. plasma membrane = a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell
  2373. plasmablast = the precursor of a plasma cell
  2374. plasmacyte = a cell that develops from a B lymphocyte in reaction to a specific antigen
  2375. plate = any flat platelike body structure or part
  2376. platysma = either of two broad muscles located on either side of the neck and innervated by the facial nerve
  2377. pleura = the thin serous membrane around the lungs and inner walls of the chest
  2378. pleural cavity = the cavity in the thorax that contains the lungs and heart
  2379. pleural space = the small potential space between the parietal and visceral layers of the pleura
  2380. plexus = a network of intersecting blood vessels or intersecting nerves or intersecting lymph vessels
  2381. plexus autonomici = a plexus of sympathetic and parasympathetic nerve fibers
  2382. plexus brachialis = a network of nerves formed by cervical and thoracic spinal nerves and supplying the arm and parts of the shoulder
  2383. plexus cardiacus = a plexus of nerves supplying the heart and nearby structures
  2384. plexus caroticus = a plexus of nerves surrounding the internal carotid artery
  2385. plexus celiacus = a large plexus of sympathetic nerves in the abdomen behind the stomach
  2386. plexus cervicalis = a nerve plexus lying beneath the sternocleidomastoid muscle
  2387. plexus choroideus = a vascular plexus of the cerebral ventricles that regulate intraventricular pressure
  2388. plexus coccygeus = a small plexus formed by the fifth sacral and coccygeal nerves
  2389. plexus dentalis = a plexus of nerves serving the teeth
  2390. plexus hypogastricus = a plexus of nerves serving the pelvic viscera
  2391. plexus lumbalis = a plexus of nerves formed by the ventral branches of the first four lumbar nerves / a lymphatic plexus located along the lower portion of the aorta and iliac vessels
  2392. plexus mesentericus = a plexus of autonomic nerves
  2393. plexus myentericus = a plexus of unmyelinated fibers and postganglionic autonomic cell bodies in the muscular coat of the esophagus and stomach and intestines
  2394. plexus periarterialis = an autonomic plexus that accompanies an artery
  2395. plexus pulmonalis = one of two autonomic nerve plexuses in each lung
  2396. plexus sacralis = a nerve plexus formed by the 4th and 5th lumbar and 1st, 2nd, 3rd sacral nerves
  2397. plica = a folded part
  2398. plica vocalis = either of two pairs of folds of mucous membrane projecting into the larynx
  2399. pneumogastric = a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera
  2400. pneumogastric nerve = a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera
  2401. pocket = saclike structure in any of various animals
  2402. pogonion = the craniometric point that is the most forward-projecting point on the anterior surface of the chin
  2403. polar body = a small cell containing little cytoplasm that is produced along with the oocyte and later discarded
  2404. poll = the part of the head between the ears / the top of the head
  2405. pollex = the thick short innermost digit of the forelimb
  2406. polygene = a gene that by itself has little effect on the phenotype but which can act together with others to produce observable variations
  2407. pompadour = a hair style in which the front hair is swept up from the forehead
  2408. pons = a band of nerve fibers linking the medulla oblongata and the cerebellum with the midbrain
  2409. pons Varolii = a band of nerve fibers linking the medulla oblongata and the cerebellum with the midbrain
  2410. ponytail = a hair style that draws the hair back so that it hangs down in back of the head like a pony's tail
  2411. popliteal artery = a continuation of the femoral artery that branches to supply the legs and feet
  2412. popliteal vein = a vein arising in the knee and ascending to become the femoral vein
  2413. pore = any small opening in the skin or outer surface of an animal
  2414. porta = an aperture or hole that opens into a bodily cavity
  2415. porta hepatis = opening for major blood vessels to enter and leave the liver
  2416. portacaval shunt = shunt that is created surgically between the portal vein and the inferior vena cava so that blood from the abdominal organs can bypass the liver
  2417. portal = a short vein that carries blood into the liver
  2418. portal system = system of veins that carry blood from the abdominal organs to the liver
  2419. portal vein = a short vein that carries blood into the liver
  2420. postcava = receives blood from lower limbs and abdominal organs and empties into the posterior part of the right atrium of the heart
  2421. postcentral gyrus = the convolution of parietal lobe that is bounded in front by the central sulcus
  2422. posterior = a tooth situated at the back of the mouth / the fleshy part of the human body that you sit on
  2423. posterior cardinal vein = a major drainage channel from the caudal part of the body
  2424. posterior cerebral artery = arises from the basilar artery
  2425. posterior facial vein = posterior branch of the facial vein
  2426. posterior horn = one of two roots of a spinal nerve that passes dorsally from the spinal cord and that consists of sensory fibers
  2427. posterior labial veins = veins that pass posterior from the labia majora to the internal pudendal vein
  2428. posterior meningeal artery = branch of the ascending pharyngeal artery that supplies the dura mater of the posterior cranial fossa
  2429. posterior naris = either one of the two posterior openings at the back of the nasal cavity leading to the nasopharynx
  2430. posterior pituitary = the posterior lobe of the pituitary body
  2431. posterior pituitary gland = the posterior lobe of the pituitary body
  2432. posterior root = one of two roots of a spinal nerve that passes dorsally from the spinal cord and that consists of sensory fibers
  2433. posterior serratus muscle = skeletal muscle that draws the rib cage backward and downward
  2434. posterior temporal artery = temporal artery that supplies the posterior part of the cortex of the temporal lobe
  2435. posterior vein of the left ventricle = arises near the apex of the heart and empties into the coronary sinus
  2436. pot = slang for a paunch
  2437. potbelly = slang for a paunch
  2438. pouch = saclike structure in any of various animals
  2439. prat = the fleshy part of the human body that you sit on
  2440. precava = receives blood from the head and arms and chest and empties into the right atrium of the heart
  2441. precentral gyrus = the convolution of the frontal lobe that is bounded in back by the central sulcus and that contains the motor area
  2442. precordium = the external surface of the body overlying the heart and stomach
  2443. prefrontal cortex = the anterior part of the frontal lobe
  2444. prefrontal lobe = the anterior part of the frontal lobe
  2445. premolar = a tooth having two cusps or points
  2446. prepuce = a fold of skin covering the tip of the penis / a fold of skin covering the tip of the clitoris
  2447. prepyloric vein = a tributary of the right gastric vein
  2448. pressure point = an area on the skin that is highly sensitive to pressure
  2449. prick = obscene terms for penis
  2450. prickle cell = a cell in the germinal layer of the skin
  2451. primary dentition = dentition of deciduous teeth
  2452. primary tooth = one of the first temporary teeth of a young mammal
  2453. primordium = an organ in its earliest stage of development
  2454. private parts = external sex organ
  2455. privates = external sex organ
  2456. proboscis = the human nose
  2457. process = a natural prolongation or projection from a part of an organism either animal or plant
  2458. processus coronoideus = a sharp triangular process projecting from a bone
  2459. pronator = a muscle that produces or assists in pronation
  2460. pronucleus = the nucleus of the ovum or sperm after fertilization but before they fuse to form the nucleus of the zygote
  2461. proprioceptor = special nerve endings in the muscles and tendons and other organs that respond to stimuli regarding the position and movement of the body
  2462. prosencephalon = the anterior portion of the brain
  2463. prostaglandin = a potent substance that acts like a hormone and is found in many bodily tissues
  2464. prostate = a firm partly muscular chestnut sized gland in males at the neck of the urethra
  2465. prostate gland = a firm partly muscular chestnut sized gland in males at the neck of the urethra
  2466. prostheon = craniometric point that is the most anterior point in the midline on the alveolar process of the maxilla
  2467. prosthion = craniometric point that is the most anterior point in the midline on the alveolar process of the maxilla
  2468. protective fold = a flap of tissue that protects what it covers
  2469. proto-oncogene = a normal gene that has the potential to become an oncogene
  2470. protoplasm = the substance of a living cell
  2471. protoplasmic astrocyte = a kind of astrocyte found in the grey matter
  2472. protoplast = a biological unit consisting of a nucleus and the body of cytoplasm with which it interacts
  2473. Protropin = trade name of a synthetic human growth hormone given to children deficient in the hormone
  2474. psoas = either of two muscles of the abdomen and pelvis that flex the trunk and rotate the thigh
  2475. pterion = the craniometric point in the region of the sphenoid fontanelle
  2476. pterygium = either of two thickened triangular layers of conjunctiva extending from the nasal edge of the eye to the cornea
  2477. pterygoid muscle = muscle descending from the sphenoid bone to the lower jaw
  2478. pterygoid plexus = a plexus of veins draining the region of the pterygoid muscles and draining into the internal maxillary and anterior facial veins
  2479. pterygoid process = two bony processes descending from the body of the sphenoid bone
  2480. pubes = the lower part of the abdomen just above the external genital organs
  2481. pubic bone = one of the three sections of the hipbone
  2482. pubic hair = hair growing in the pubic area
  2483. pubic region = the lower part of the abdomen just above the external genital organs
  2484. pubis = one of the three sections of the hipbone
  2485. pudding face = a large fat human face
  2486. pudding-face = a large fat human face
  2487. pudendal artery = arteries supplying the external genital organs of humans
  2488. pudendal cleavage = the fissure between the labia majora
  2489. pudendal cleft = the fissure between the labia majora
  2490. pudendal slit = the fissure between the labia majora
  2491. pudendal vein = vein of the pudendum
  2492. pudendum = human external genital organs collectively especially of a female
  2493. pug nose = a short nose
  2494. pulmonary artery = one of two arteries (branches of the pulmonary trunk) that carry venous blood from the heart to the lungs
  2495. pulmonary plexis = one of two autonomic nerve plexuses in each lung
  2496. pulmonary trunk = the artery that carries venous blood from the right ventricle of the heart and divides into the right and left pulmonary arteries
  2497. pulmonary valve = a semilunar valve between the right ventricle and the pulmonary artery
  2498. pulmonary vein = any of four veins that carry arterial blood from the lungs to the left atrium of the heart
  2499. pulp = the soft inner part of a tooth
  2500. pulp cavity = the central cavity of a tooth containing the pulp
  2501. pump = the hollow muscular organ located behind the sternum and between the lungs
  2502. punctum = a point or small area
  2503. pupil = the contractile aperture in the center of the iris of the eye
  2504. pupillary sphincter = a ring of smooth muscle surrounding the iris
  2505. puppy fat = fat on the body of a baby or child
  2506. Purkinje cell = a large densely branching neuron that is the characteristic cell of the cerebellar cortex
  2507. Purkinje fiber = a specialized cardiac muscle fiber that is part of the Purkinje network
  2508. Purkinje network = a network of Purkinje fibers that carry the cardiac impulse from the atrioventricular node to the ventricles of the heart and causes them to contract
  2509. Purkinje's system = a network of Purkinje fibers that carry the cardiac impulse from the atrioventricular node to the ventricles of the heart and causes them to contract
  2510. Purkinje's tissue = a network of Purkinje fibers that carry the cardiac impulse from the atrioventricular node to the ventricles of the heart and causes them to contract
  2511. purulence = a fluid product of inflammation
  2512. pus = a fluid product of inflammation
  2513. puss = obscene terms for female genitals
  2514. pussy = obscene terms for female genitals
  2515. putamen = the outer reddish part of the lenticular nucleus
  2516. putz = obscene terms for penis
  2517. pyloric sphincter = the sphincter muscle of the pylorus that separates the stomach from the duodenum
  2518. pyloric valve = the sphincter muscle of the pylorus that separates the stomach from the duodenum
  2519. pyloric vein = receives veins from the upper surfaces of the stomach and empties into the portal vein
  2520. pylorus = a small circular opening between the stomach and the duodenum
  2521. pyramidal bone = a wrist bone that articulates with the pisiform and hamate and lunate bones
  2522. pyramidal motor system = any of the important motor nerves on each side of the central nervous system that run from the sensorimotor areas of the cortex through the brainstem to motor neurons of the cranial nerve nuclei and the ventral root of the spinal cord
  2523. pyramidal tract = any of the important motor nerves on each side of the central nervous system that run from the sensorimotor areas of the cortex through the brainstem to motor neurons of the cranial nerve nuclei and the ventral root of the spinal cord
  2524. pyriform area = pear-shaped neural structure on either side of the brain in the rhinencephalon
  2525. pyriform lobe = pear-shaped neural structure on either side of the brain in the rhinencephalon
  2526. quad = a muscle of the thigh that extends the leg
  2527. quadriceps = a muscle of the thigh that extends the leg
  2528. quadriceps femoris = a muscle of the thigh that extends the leg
  2529. queue = a braid of hair at the back of the head
  2530. quick = any area of the body that is highly sensitive to pain
  2531. quiff = a prominent forelock
  2532. rachis = the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
  2533. radial artery = branch of the brachial artery beginning below the elbow and extending down the forearm around the wrist and into the palm
  2534. radial nerve = largest branch of the brachial plexus
  2535. radial vein = superficial veins ascending the radial side of the forearm
  2536. radiatio optica = a nerve pathway from the lateral geniculate body to the visual cortex
  2537. radiation = a radial arrangement of nerve fibers connecting different parts of the brain
  2538. radicle = a small structure resembling a rootlet
  2539. radiocarpal joint = a joint between the distal end of the radius and the proximal row of carpal bones
  2540. radius = the outer and slightly shorter of the two bones of the human forearm
  2541. ramus = the posterior part of the mandible that is more or less vertical
  2542. Ranvier's nodes = small gaps in the myelin sheath of medullated axons
  2543. raphe = a ridge that forms a seam between two parts
  2544. RAS = the network in the reticular formation that serves an alerting or arousal function
  2545. RBC = a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues
  2546. rear = the fleshy part of the human body that you sit on
  2547. rear end = the fleshy part of the human body that you sit on
  2548. receptor = an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation / a cellular structure that is postulated to exist in order to mediate between a chemical agent that acts on nervous tissue and the physiological response
  2549. recessive = an allele that produces its characteristic phenotype only when its paired allele is identical
  2550. recessive allele = an allele that produces its characteristic phenotype only when its paired allele is identical
  2551. recessive gene = gene that produces its characteristic phenotype only when its allele is identical
  2552. recombinant human insulin = a form of insulin (trade name Humulin) made from recombinant DNA that is identical to human insulin
  2553. rectal artery = one of the arteries supplying the rectal area
  2554. rectal vein = any of several veins draining the walls of the anal canal and rectum
  2555. rectum = the terminal section of the alimentary canal
  2556. rectus = any of various straight muscles
  2557. rectus inferior = the ocular muscle whose contraction turns the eyeball down and medially
  2558. rectus lateralis = the ocular muscle whose contraction turns the eyeball outward
  2559. rectus medialis = the ocular muscle whose contraction turns the eyeball medially
  2560. rectus superior = the ocular muscle whose contraction turns the eyeball upward and medially
  2561. red blood cell = a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues
  2562. red bone marrow = bone marrow of children and some adult bones that is required for the formation of red blood cells
  2563. red marrow = bone marrow of children and some adult bones that is required for the formation of red blood cells
  2564. reflex arc = the neural path of a reflex
  2565. region = a part of an animal that has a special function or is supplied by a given artery or nerve
  2566. regulator gene = a gene that produces a repressor substance that inhibits an operator gene
  2567. regulatory gene = a gene that produces a repressor substance that inhibits an operator gene
  2568. relaxin = hormone secreted by the corpus luteum during the last days of pregnancy
  2569. releasing factor = any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones
  2570. releasing hormone = any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones
  2571. remains = the dead body of a human being
  2572. renal artery = an artery originating from the abdominal aorta and supplying the kidneys and adrenal glands and ureters
  2573. renal corpuscle = the capsule that contains Bowman's capsule and a glomerulus at the expanded end of a nephron
  2574. renal cortex = the cortex of the kidney containing the glomeruli and the convoluted tubules
  2575. renal pelvis = a structure shaped like a funnel in the outlet of the kidney into which urine is discharged before passing into the ureter
  2576. renal vein = veins that accompany renal arteries
  2577. repressor gene = gene that prevents a nonallele from being transcribed
  2578. reproductive cell = a spermatozoon or an ovum
  2579. reproductive organ = any organ involved in sexual reproduction
  2580. reproductive system = organs and tissues involved in the production and maturation of gametes and in their union and subsequent development as offspring
  2581. RES = a widely distributed system consisting of all the cells able to ingest bacteria or colloidal particles etc, except for certain white blood cells
  2582. respiratory center = the center in the medulla oblongata and pons that integrates sensory information about the level of oxygen and carbon dioxide in the blood and determines the signals to be sent to the respiratory muscles
  2583. respiratory organ = any organ involved in the process of respiration
  2584. respiratory system = the system for taking in oxygen and giving off carbon dioxide
  2585. respiratory tract = the passages through which air enters and leaves the body
  2586. rete = a network of intersecting blood vessels or intersecting nerves or intersecting lymph vessels
  2587. rete Malpighii = the innermost layer of the epidermis
  2588. rete testis = network of tubules carrying sperm from the seminiferous tubules to the vasa efferentia
  2589. reticular activating system = the network in the reticular formation that serves an alerting or arousal function
  2590. reticular formation = a complex neural network in the central core of the brainstem
  2591. reticulocyte = an immature red blood cell containing a network of filaments or granules
  2592. reticuloendothelial system = a widely distributed system consisting of all the cells able to ingest bacteria or colloidal particles etc, except for certain white blood cells
  2593. reticulum = any fine network
  2594. retina = the innermost light-sensitive membrane covering the back wall of the eyeball
  2595. retinal cone = a visual receptor cell in the retina that is sensitive to bright light and to color
  2596. retinal rod = a visual receptor cell that is sensitive to dim light
  2597. retromandibular vein = posterior branch of the facial vein
  2598. RF = a complex neural network in the central core of the brainstem
  2599. RH = any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones
  2600. Rh negative = the blood group whose red cells lack the Rh factor
  2601. Rh positive = the blood group (approximately 85% of people) whose red cells have the Rh factor
  2602. Rh-negative blood = the blood group whose red cells lack the Rh factor
  2603. Rh-negative blood type = the blood group whose red cells lack the Rh factor
  2604. Rh-positive blood type = the blood group (approximately 85% of people) whose red cells have the Rh factor
  2605. rhaphe = a ridge that forms a seam between two parts
  2606. rhinencephalon = a center in the cerebral hemispheres that governs the sense of smell in lower animals
  2607. rhinion = the anterior tip at the end of the suture of the nasal bones
  2608. rhombencephalon = the posterior portion of the brain including cerebellum and brainstem
  2609. rhomboid = any of several muscles of the upper back that help move the shoulder blade
  2610. rhomboid minor muscle = rhomboid muscle that draws the scapula toward the vertebral column and slightly upward
  2611. rhomboid muscle = any of several muscles of the upper back that help move the shoulder blade
  2612. rhomboideus major muscle = rhomboid muscle that draws the scapula toward the spinal column
  2613. rib = a riblike supporting or strengthening part of an animal or plant / any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans
  2614. rib cage = the bony enclosing wall of the chest
  2615. ribosome = an organelle in the cytoplasm of a living cell; they attach to mRNA and move down it one codon at a time and then stop until tRNA brings the required amino acid
  2616. ridge = any long raised border or margin of a bone or tooth or membrane
  2617. right = the hand that is on the right side of the body
  2618. right atrioventricular valve = valve with three cusps; situated between the right atrium and the right ventricle
  2619. right atrium = the right upper chamber of the heart that receives blood from the venae cavae and coronary sinus
  2620. right atrium of the heart = the right upper chamber of the heart that receives blood from the venae cavae and coronary sinus
  2621. right brain = the cerebral hemisphere to the right of the corpus callosum that controls the left half of the body
  2622. right coronary artery = arises from the right aortic sinus
  2623. right gastric artery = a branch of the hepatic artery that supplies the pyloric portion of the stomach on the lesser curvature
  2624. right gastric vein = receives veins from the upper surfaces of the stomach and empties into the portal vein
  2625. right hand = the hand that is on the right side of the body
  2626. right hemisphere = the cerebral hemisphere to the right of the corpus callosum that controls the left half of the body
  2627. right ventricle = the chamber on the right side of the heart that receives venous blood from the right atrium and pumps it into the pulmonary trunk
  2628. rima = a narrow elongated opening or fissure between two symmetrical parts
  2629. rima glottidis = the space between the two true vocal folds
  2630. rima oris = the opening through which food is taken in and vocalizations emerge
  2631. rima pudendi = the fissure between the labia majora
  2632. rima respiratoria = the opening between the false vocal folds
  2633. rima vestibuli = the opening between the false vocal folds
  2634. rima vocalis = the space between the two true vocal folds
  2635. rima vulvae = the fissure between the labia majora
  2636. ring finger = the third finger
  2637. ring of color = small circular area such as that around the human nipple or an inflamed area around a pimple or insect bite
  2638. ringlet = a strand or cluster of hair
  2639. roach = a roll of hair brushed back from the forehead
  2640. rod = a visual receptor cell that is sensitive to dim light
  2641. rod cell = a visual receptor cell that is sensitive to dim light
  2642. Rolando's area = the cortical area that influences motor movements
  2643. Rolando's fissure = a brain fissure extending upward on the lateral surface of both hemispheres
  2644. Roman nose = a nose with a prominent slightly aquiline bridge
  2645. roof of the mouth = the upper surface of the mouth that separates the oral and nasal cavities
  2646. root = the embedded part of a bodily structure such as a tooth, nail, or hair
  2647. root canal = the passage in the root of a tooth through which its nerve and blood vessels enter the pulp cavity
  2648. rotary joint = a freely moving joint in which movement is limited to rotation
  2649. rotator cuff = a supporting structure of the shoulder consisting of the muscles and tendons that attach the arm to the shoulder joint and enable the arm to move
  2650. rotatory joint = a freely moving joint in which movement is limited to rotation
  2651. round bone = bones that are round in shape
  2652. round ligament of the uterus = ligament attached to the uterus on either side in front of and below the opening of the Fallopian tube and passing through the inguinal canal to the labia majora
  2653. round window = fenestra leading into the cochlea
  2654. rudiment = the remains of a body part that was functional at an earlier stage of life
  2655. ruff = an external body part consisting of feathers or hair about the neck of a bird or other animal
  2656. ruga = a fold or wrinkle or crease
  2657. rump = the fleshy part of the human body that you sit on
  2658. SA node = a specialized bit of heart tissue that controls the heartbeat
  2659. sac = a structure resembling a bag in an animal
  2660. saccule = a small sac or pouch
  2661. sacculus = a small sac or pouch
  2662. sacral nerve = any of five pairs of spinal nerves emerging from the sacral region of the spinal cord
  2663. sacral plexus = a nerve plexus formed by the 4th and 5th lumbar and 1st, 2nd, 3rd sacral nerves
  2664. sacral vein = vein of the sacral region
  2665. sacral vertebra = one of 5 vertebrae in the human spine that fuse in the adult to form the sacrum
  2666. sacrum = wedge-shaped bone consisting of five fused vertebrae forming the posterior part of the pelvis
  2667. sagittal suture = the suture uniting the two parietal bones
  2668. saliva = a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth
  2669. salivary duct = a duct through which saliva passes from the salivary gland into the mouth
  2670. salivary gland = any of three pairs of glands in the mouth and digestive system that secrete saliva for digestion
  2671. salpinx = a tube in the uterus or the ear
  2672. sanies = a fluid product of inflammation
  2673. saphenous nerve = a branch of the femoral nerve that supplies cutaneous branches to the inner aspect of the leg and foot
  2674. saphenous vein = either of two chief superficial veins of the leg that drain blood from the foot
  2675. sarcolemma = an extensible membrane enclosing the contractile substance of a muscle fiber
  2676. sarcomere = one of the segments into which a myofibril is divided
  2677. sarcoplasm = the cytoplasm of a striated muscle fiber
  2678. sarcosome = a large mitochondrion in a striated muscle fiber
  2679. sarcostyle = one of many contractile filaments that make up a striated muscle fiber
  2680. sartorius = a muscle in the thigh that helps to rotate the leg into the sitting position assumed by a tailor
  2681. sartorius muscle = a muscle in the thigh that helps to rotate the leg into the sitting position assumed by a tailor
  2682. sausage curl = a fat sausage-shaped curl
  2683. scab = the crustlike surface of a healing skin lesion
  2684. scalene muscle = any of four pairs of muscles extending from the cervical vertebrae to the second rib
  2685. scalenus = any of four pairs of muscles extending from the cervical vertebrae to the second rib
  2686. scalp = the skin that covers the top of the head
  2687. scalp lock = a long tuft of hair left on top of the shaven head
  2688. scaphoid bone = the largest wrist bone on the thumb side
  2689. scapula = either of two flat triangular bones one on each side of the shoulder in human beings
  2690. scar tissue = the connective tissue that forms a scar
  2691. scavenger cell = a cell that engulfs and digests debris and invading microorganisms
  2692. Schlemm's canal = a circular canal in the eye that drains aqueous humor from the anterior chamber of the eye into the anterior ciliary veins
  2693. schnoz = informal terms for the nose
  2694. schnozzle = informal terms for the nose
  2695. Schwann cell = any cell that covers the nerve fibers in the peripheral nervous system and forms the myelin sheath
  2696. sciatic nerve = arises from the sacral plexus and passes about halfway down the thigh where it divides into the common peroneal and tibial nerves
  2697. sclera = the whitish fibrous membrane (albuginea) that with the cornea forms the outer covering and protection of the eyeball
  2698. scleral veins = tributaries of the anterior ciliary veins that drain the sclera of the eye
  2699. sclerotic coat = the whitish fibrous membrane (albuginea) that with the cornea forms the outer covering and protection of the eyeball
  2700. scrotal vein = veins passing from the scrotum to the pudendal veins
  2701. scrotum = the external pouch that contains the testes
  2702. scruff = the back side of the neck
  2703. seat = the fleshy part of the human body that you sit on
  2704. sebaceous follicle = a cutaneous gland that secretes sebum (usually into a hair follicle) for lubricating hair and skin
  2705. sebaceous gland = a cutaneous gland that secretes sebum (usually into a hair follicle) for lubricating hair and skin
  2706. sebum = the oily secretion of the sebaceous glands
  2707. second cranial nerve = the cranial nerve that serves the retina
  2708. secondary dentition = dentition of permanent teeth
  2709. secreter = any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream
  2710. secretin = a gastrointestinal hormone that stimulates the secretion of water and bicarbonate from the pancreas and bile ducts whenever the stomach empties too much acid into the small intestine
  2711. secretion = a functionally specialized substance (especially one that is not a waste) released from a gland or cell
  2712. secretor = any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream
  2713. secretory organ = any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream
  2714. seed = the thick white fluid containing spermatozoa that is ejaculated by the male genital tract
  2715. semen = the thick white fluid containing spermatozoa that is ejaculated by the male genital tract
  2716. semicircular canal = one of three tube loops filled with fluid and in planes nearly at right angles with one another
  2717. semilunar bone = one of the eight small wrist bones
  2718. semilunar cartilage = a disk of cartilage that serves as a cushion between the ends of bones that meet at a joint
  2719. semilunar valve = a heart valve with cusps shaped like half-moons
  2720. seminal duct = the efferent duct of the testis in man
  2721. seminal fluid = the thick white fluid containing spermatozoa that is ejaculated by the male genital tract
  2722. seminal vesicle = either of a pair of glands located on either side of the male urinary bladder that open into the vas deferens and that secrete many components of semen during ejaculation
  2723. seminiferous tubule = any of the numerous long convoluted tubules in the testis which are the sites where spermatozoa mature
  2724. semipermeable membrane = a membrane (as a cell membrane) that allows some molecules to pass through but not others
  2725. sense organ = an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation
  2726. sensorimotor area = an area of the cortex including the precentral gyrus and the postcentral gyrus and combining sensory and motor functions
  2727. sensorimotor region = an area of the cortex including the precentral gyrus and the postcentral gyrus and combining sensory and motor functions
  2728. sensorium = the areas of the brain that process and register incoming sensory information and make possible the conscious awareness of the world
  2729. sensory fiber = a nerve fiber that carries impulses toward the central nervous system
  2730. sensory nerve = a nerve that passes impulses from receptors toward or to the central nervous system
  2731. sensory neuron = a neuron conducting impulses inwards to the brain or spinal cord
  2732. sensory receptor = an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation
  2733. sensory system = the body's system of sense organs
  2734. septum = a dividing partition between two tissues or cavities
  2735. serosa = a thin membrane lining the closed cavities of the body
  2736. serous membrane = a thin membrane lining the closed cavities of the body
  2737. serratus = any of several muscles of the trunk
  2738. serratus anterior = muscles that rotate the scapula and elevate the rib cage
  2739. serratus magnus = muscles that rotate the scapula and elevate the rib cage
  2740. serratus muscles = any of several muscles of the trunk
  2741. serratus posterior = skeletal muscle that draws the rib cage backward and downward
  2742. serratus posterior inferior = a thin quadrilateral muscle at the junction of the thoracic and lumbar regions
  2743. serratus posterior superior = a thin quadrilateral muscle of the upper and dorsal part of the thorax
  2744. Sertoli cell = elongated cells found in the seminiferous tubules of the testis
  2745. Sertoli's cell = elongated cells found in the seminiferous tubules of the testis
  2746. serum = an amber, watery fluid, rich in proteins, that separates out when blood coagulates
  2747. sesamoid = any of several small round bones formed in a tendon where it passes over a joint
  2748. sesamoid bone = any of several small round bones formed in a tendon where it passes over a joint
  2749. seventh cranial nerve = cranial nerve that supplies facial muscles
  2750. sex cell = a spermatozoon or an ovum
  2751. sex chromatin = chromatin found only in female cells
  2752. sex chromosome = a chromosome that determines the sex of an individual
  2753. sex gland = a gland in which gametes (sex cells) are produced
  2754. sex organ = any organ involved in sexual reproduction
  2755. shaft = obscene terms for penis / the main (mid) section of a long bone
  2756. shank = the part of the human leg between the knee and the ankle
  2757. shank's mare = you own legs
  2758. shank's pony = you own legs
  2759. shanks' mare = you own legs
  2760. shanks' pony = you own legs
  2761. shape = alternative names for the body of a human being
  2762. sheath = an enveloping structure or covering enclosing an animal or plant organ or part
  2763. shin = the front part of the human leg between the knee and the ankle / the inner and thicker of the two bones of the human leg between the knee and ankle
  2764. shin bone = the inner and thicker of the two bones of the human leg between the knee and ankle
  2765. shinbone = the inner and thicker of the two bones of the human leg between the knee and ankle
  2766. short bone = a bone that is of approximately equal dimension in all directions
  2767. short gastric artery = several small arteries branching off of the splenic artery and going to the greater curvature of the stomach
  2768. short saphenous vein = a vein running from the foot up the back of the leg to the knee
  2769. shoulder = the part of the body between the neck and the upper arm / a ball-and-socket joint between the head of the humerus and a cavity of the scapula
  2770. shoulder blade = either of two flat triangular bones one on each side of the shoulder in human beings
  2771. shoulder bone = either of two flat triangular bones one on each side of the shoulder in human beings
  2772. shoulder girdle = the bony arch formed by the collarbones and shoulder blades in humans
  2773. shoulder joint = a ball-and-socket joint between the head of the humerus and a cavity of the scapula
  2774. shunt = a passage by which a bodily fluid (especially blood) is diverted from one channel to another
  2775. sickle cell = an abnormal red blood cell that has a crescent shape and an abnormal form of hemoglobin
  2776. side = either the left or right half of a body
  2777. side-whiskers = facial hair that has grown down the side of a man's face in front of the ears
  2778. sideburn = facial hair that has grown down the side of a man's face in front of the ears
  2779. sideroblast = an erythroblast having granules of ferritin
  2780. siderocyte = an abnormal red blood cell containing granules of iron not bound in hemoglobin
  2781. sigmoid colon = the s-shaped curve between the descending colon and the rectum
  2782. sigmoid flexure = the s-shaped curve between the descending colon and the rectum
  2783. sigmoid sinus = an S-shaped dural sinus on the temporal and occipital bones
  2784. sigmoid vein = tributaries of the inferior mesenteric vein
  2785. simple eye = an eye having a single lens
  2786. sinciput = the front part of the head or skull
  2787. sinew = a cord or band of inelastic tissue connecting a muscle with its bony attachment
  2788. sinoatrial node = a specialized bit of heart tissue that controls the heartbeat
  2789. sinus = a wide channel containing blood
  2790. sinus cavernosus = either of a pair of large venous sinuses in the cranial cavity
  2791. sinus coronarius = a short sinus receiving most of the veins of the heart
  2792. sinus ethmoidales = a sinus of the meatuses of the nasal cavity
  2793. sinus paranasales = any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with the lining of the nasal cavities
  2794. sinus rectus = an unpaired sinus of the dura mater
  2795. sinus sigmoideus = an S-shaped dural sinus on the temporal and occipital bones
  2796. sinus transversus = a paired dural sinus
  2797. sinus venosus sclerae = a circular canal in the eye that drains aqueous humor from the anterior chamber of the eye into the anterior ciliary veins
  2798. sinusoid = tiny endothelium-lined passages for blood in the tissue of an organ
  2799. sixth cranial nerve = a small motor nerve supplying the lateral rectus muscle of the eye
  2800. skeletal muscle = a muscle that is connected at either or both ends to a bone and so move parts of the skeleton
  2801. skeletal structure = any structure created by the skeleton of an organism
  2802. skeletal system = the hard structure (bones and cartilages) that provides a frame for the body of an animal
  2803. skeleton = the hard structure (bones and cartilages) that provides a frame for the body of an animal
  2804. skin = a natural protective body covering and site of the sense of touch
  2805. skin cell = any of the cells making up the skin
  2806. skin graft = a piece of skin taken from a donor area and surgically grafted at the site of an injury or burn
  2807. skull = the bony skeleton of the head of vertebrates
  2808. skullcap = the dome of the skull
  2809. slit = obscene terms for female genitals
  2810. slobber = saliva spilling from the mouth
  2811. small = the slender part of the back
  2812. small intestine = the longest part of the alimentary canal
  2813. smaller pectoral muscle = a skeletal muscle that draws down the scapula or raises the ribs
  2814. smear = a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope
  2815. smegma = a white secretion of the sebaceous glands of the foreskin
  2816. smiler = the human face
  2817. smooth muscle = muscle tissue that does not appear striated under the microscope
  2818. smooth muscle cell = cells of the smooth muscles
  2819. snatch = obscene terms for female genitals
  2820. snoot = informal terms for the nose
  2821. snot = nasal mucus
  2822. snout = informal terms for the nose
  2823. socket = a bony hollow into which a structure fits
  2824. soft palate = a muscular flap that closes off the nasopharynx during swallowing or speaking
  2825. soft spot = any membranous gap between the bones of the cranium in an infant or fetus
  2826. solar plexus = a large plexus of sympathetic nerves in the abdomen behind the stomach
  2827. sole = the underside of the foot
  2828. soleus = a broad flat muscle in the calf of the leg under the gastrocnemius muscle
  2829. soleus muscle = a broad flat muscle in the calf of the leg under the gastrocnemius muscle
  2830. solid body substance = the solid parts of the body
  2831. soma = alternative names for the body of a human being
  2832. somatic cell = any of the cells of a plant or animal except the reproductive cells
  2833. somatic chromosome = any chromosome that is not a sex chromosome
  2834. somatotrophic hormone = a hormone produced by the anterior pituitary gland
  2835. somatotrophin = a hormone produced by the anterior pituitary gland
  2836. somatotropic hormone = a hormone produced by the anterior pituitary gland
  2837. somatotropin = a hormone produced by the anterior pituitary gland
  2838. soul patch = a small patch of facial hair just below the lower lip and above the chin
  2839. soup-strainer = slang for a mustache
  2840. spare tire = excess fat around the waistline
  2841. specimen = a bit of tissue or blood or urine that is taken for diagnostic purposes
  2842. speech organ = any of the organs involved in speech production
  2843. sperm = the male reproductive cell
  2844. sperm cell = the male reproductive cell
  2845. spermatic cord = a structure resembling a cord that suspends the testis within the scrotum and contains the vas deferens and other vessels and nerves
  2846. spermatid = an immature gamete produced by a spermatocyte
  2847. spermatocele = a swelling on the epididymis or the testis
  2848. spermatocyte = a male gametocyte that develops into four spermatids
  2849. spermatozoan = the male reproductive cell
  2850. spermatozoon = the male reproductive cell
  2851. sphenion = the anterior tip of the parietal bone
  2852. sphenoid = butterfly-shaped bone at the base of the skull
  2853. sphenoid bone = butterfly-shaped bone at the base of the skull
  2854. sphenoid fontanel = the irregularly shaped area on either side of the cranium where the frontal bone and the anterior tip of the parietal bone and the temporal bone and the greater wing of the sphenoid bone meet
  2855. sphenoid fontanelle = the irregularly shaped area on either side of the cranium where the frontal bone and the anterior tip of the parietal bone and the temporal bone and the greater wing of the sphenoid bone meet
  2856. sphenoidal fontanel = the irregularly shaped area on either side of the cranium where the frontal bone and the anterior tip of the parietal bone and the temporal bone and the greater wing of the sphenoid bone meet
  2857. sphenoidal fontanelle = the irregularly shaped area on either side of the cranium where the frontal bone and the anterior tip of the parietal bone and the temporal bone and the greater wing of the sphenoid bone meet
  2858. spherocyte = an abnormal spherical red blood cell
  2859. spheroid joint = a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
  2860. sphincter = a ring of muscle that contracts to close an opening
  2861. sphincter ani = the sphincter muscle of the anus
  2862. sphincter muscle = a ring of muscle that contracts to close an opening
  2863. spicule = small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and corals
  2864. spiculum = small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and corals
  2865. spinal accessory = arises from two sets of roots (cranial and spinal) that unite to form the nerve
  2866. spinal canal = the canal in successive vertebrae through which the spinal cord passes
  2867. spinal column = the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
  2868. spinal cord = a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain
  2869. spinal fluid = clear liquid produced in the ventricles of the brain
  2870. spinal nerve = any of the 31 pairs of nerves emerging from each side of the spinal cord
  2871. spinal nerve root = one of two roots of the spinal nerves
  2872. spinal nerve roots = either of two roots of the spinal nerves
  2873. spinal vein = veins that drain the spinal cord
  2874. spindle = tiny fibers that are seen in cell division
  2875. spindlelegs = long thin legs
  2876. spindleshanks = long thin legs
  2877. spine = the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
  2878. spiracle = a breathing orifice
  2879. spit = a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth
  2880. spit curl = a spiral curl plastered on the forehead or cheek
  2881. spittle = a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth
  2882. splanchnic nerve = any of several nerves of the sympathetic part of the autonomic nervous system that innervate viscera and blood vessels
  2883. splayfoot = a foot afflicted with a fallen arch
  2884. spleen = a large dark-red oval organ on the left side of the body between the stomach and the diaphragm
  2885. splenic artery = an artery that originates from the celiac trunk and supplies blood to the spleen
  2886. splenic vein = a vein formed by several small veins on the surface of the spleen
  2887. splenius = either of two flat muscles that extend from the upper vertebrae to the base of the skull and serve to rotate or flex or extend the head and neck
  2888. splenius muscle = either of two flat muscles that extend from the upper vertebrae to the base of the skull and serve to rotate or flex or extend the head and neck
  2889. spongioblast = any of various columnar epithelial cells in the central nervous system that develop into neuroglia
  2890. sputum = expectorated matter; saliva mixed with discharges from the respiratory passages
  2891. sputum smear = any of several cytologic smears obtained from different parts of the lower respiratory tract
  2892. squamous cell = an epithelial cell that is flat like a plate and form a single layer of epithelial tissue
  2893. stapes = the stirrup-shaped ossicle that transmits sound from the incus to the cochlea
  2894. stellate venule = a star-shaped group of venules in the renal cortex
  2895. stem cell = an undifferentiated cell whose daughter cells may differentiate into other cell types
  2896. stemma = an eye having a single lens
  2897. stephanion = the craniometric point on the coronal suture above the acoustic meatus
  2898. stern = the fleshy part of the human body that you sit on
  2899. sternocleido mastoideus = one of two thick muscles running from the sternum and clavicle to the mastoid and occipital bone; turns head obliquely to the opposite side
  2900. sternocleidomastoid = one of two thick muscles running from the sternum and clavicle to the mastoid and occipital bone; turns head obliquely to the opposite side
  2901. sternocleidomastoid muscle = one of two thick muscles running from the sternum and clavicle to the mastoid and occipital bone; turns head obliquely to the opposite side
  2902. sternocleidomastoid vein = drains the sternocleidomastoid muscle
  2903. sternum = the flat bone that articulates with the clavicles and the first seven pairs of ribs
  2904. STH = a hormone produced by the anterior pituitary gland
  2905. stick = informal terms for the leg
  2906. stiff = the dead body of a human being
  2907. stigma = an external tracheal aperture in a terrestrial arthropod
  2908. stirrup = the stirrup-shaped ossicle that transmits sound from the incus to the cochlea
  2909. stoma = a mouth or mouthlike opening
  2910. stomach = an enlarged and muscular saclike organ of the alimentary canal
  2911. straight sinus = an unpaired sinus of the dura mater
  2912. stratum basale = the innermost layer of the epidermis
  2913. stratum corneum = the outermost layer of the epidermis consisting of dead cells that slough off
  2914. stratum germinativum = the innermost layer of the epidermis
  2915. stratum granulosum = the layer of epidermis just under the stratum corneum or (on the palms and soles) just under the stratum lucidum
  2916. stratum lucidum = the layer of epidermis immediately under the stratum corneum in the skin of the palms and soles
  2917. stretch receptor = a receptor in a muscle that responds to stretching of the muscle tissue
  2918. striate area = the part of the occipital cortex that receives the fibers of the optic radiation from the lateral geniculate body and is the primary receptive area for vision
  2919. striate body = a striped mass of white and grey matter located in front of the thalamus in each cerebral hemisphere
  2920. striate cortex = the part of the occipital cortex that receives the fibers of the optic radiation from the lateral geniculate body and is the primary receptive area for vision
  2921. striate vein = tributaries to the basal vein
  2922. striated muscle = a muscle that is connected at either or both ends to a bone and so move parts of the skeleton
  2923. striated muscle cell = an elongated contractile cell in striated muscle tissue
  2924. striated muscle fiber = an elongated contractile cell in striated muscle tissue
  2925. striated muscle tissue = muscle tissue characterized by transverse stripes
  2926. striatum = a striped mass of white and grey matter located in front of the thalamus in each cerebral hemisphere
  2927. stroma = the supporting tissue of an organ
  2928. structural gene = a gene that controls the production of a specific protein or peptide
  2929. structure = a particular complex anatomical part of a living thing and its construction and arrangement
  2930. stubble = short stiff hairs growing on a man's face when he has not shaved for a few days
  2931. stump = the part of a limb or tooth that remains after the rest is removed
  2932. styloid process = extends from the base of the temporal bone
  2933. stylomastoid vein = a vein that drains the tympanic cavity and empties into the retromandibular vein
  2934. subarachnoid space = a space in the meninges beneath the arachnoid membrane and above the pia mater that contains the cerebrospinal fluid
  2935. subclavian artery = either of two arteries that supply blood to the neck and arms
  2936. subclavian vein = a continuation of the axillary vein
  2937. sublingual gland = a small salivary gland that produces mucin
  2938. sublingual salivary gland = a small salivary gland that produces mucin
  2939. sublingual vein = a tributary of the lingual vein
  2940. submandibular gland = a salivary gland inside the lower jaw on either side that produces most of the nocturnal saliva
  2941. submandibular salivary gland = a salivary gland inside the lower jaw on either side that produces most of the nocturnal saliva
  2942. submaxilla = the jaw in vertebrates that is hinged to open the mouth
  2943. submaxillary gland = a salivary gland inside the lower jaw on either side that produces most of the nocturnal saliva
  2944. submaxillary salivary gland = a salivary gland inside the lower jaw on either side that produces most of the nocturnal saliva
  2945. submucosa = the connective tissue beneath mucous membrane
  2946. substantia alba = whitish nervous tissue of the CNS consisting of neurons and their myelin sheaths
  2947. substantia grisea = greyish nervous tissue containing cell bodies as well as fibers
  2948. substantia nigra = a layer of deeply pigmented grey matter in the midbrain; associated with the striate body
  2949. subthalamic nucleus = an oval mass of grey matter located in the caudal part of the subthalamus
  2950. subthalamus = the ventral part of the thalamus
  2951. succus = any of several liquids of the body
  2952. sudor = salty fluid secreted by sweat glands
  2953. sudoriferous gland = any of the glands in the skin that secrete perspiration
  2954. sulcus = any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain
  2955. sulcus centralis = a brain fissure extending upward on the lateral surface of both hemispheres
  2956. sulcus lateralis cerebri = the deepest and most prominent of the cortical fissures
  2957. sunken arch = an instep flattened so the entire sole rests on the ground
  2958. superciliary arch = a ridge on the frontal bone above the eye socket
  2959. superciliary ridge = a ridge on the frontal bone above the eye socket
  2960. supercilium = the arch of hair above each eye
  2961. superficial epigastric vein = empties into the great saphenous vein
  2962. superficial middle cerebral vein = a large vein along the line of the Sylvian fissure to the cavernous sinus
  2963. superficial temporal vein = join the middle temporal vein to empty into the retromandibular vein
  2964. superior alveolar artery = the alveolar artery that supplies the upper teeth
  2965. superior cerebellar artery = the superior branch of the cerebellar artery
  2966. superior cerebral vein = a cerebral vein that drains the dorsal convexity of the cerebral hemisphere and empties into the cavernous sinus
  2967. superior colliculus = an essential visual center between the retina and the striate cortex
  2968. superior epigastric veins = veins that accompany the superior epigastric artery
  2969. superior labial artery = an artery that is a branch of the facial artery that supplies the upper lip
  2970. superior labial vein = a tributary of the facial vein that drains the upper lip
  2971. superior mesenteric artery = originates from the upper part of the aorta that supplies the small intestines and the cecum and the colon
  2972. superior ophthalmic vein = a vein that begins at the inner angle of the eye socket and passes through the superior orbital fissure to empty into the cavernous sinus
  2973. superior pulmonary vein = either of two pulmonary veins (left and right) returning blood from the superior lobes of the lungs
  2974. superior rectus = the ocular muscle whose contraction turns the eyeball upward and medially
  2975. superior rectus muscle = the ocular muscle whose contraction turns the eyeball upward and medially
  2976. superior thalamostriate vein = a long vein that helps to form the internal cerebral vein
  2977. superior thyroid vein = a vein on each side that drains the upper part of the thyroid and empties into the internal jugular vein
  2978. superior vena cava = receives blood from the head and arms and chest and empties into the right atrium of the heart
  2979. superior vocal cord = either of the upper two vocal cords that are not involved in vocalization
  2980. supinator = a muscle (especially in the forearm) that produces or assists in supination
  2981. suppresser = a gene that suppresses the phenotypic expression of another gene
  2982. suppresser gene = a gene that suppresses the phenotypic expression of another gene
  2983. suppressor = a gene that suppresses the phenotypic expression of another gene
  2984. suppressor gene = a gene that suppresses the phenotypic expression of another gene
  2985. suppuration = a fluid product of inflammation
  2986. supraorbital ridge = a ridge on the frontal bone above the eye socket
  2987. supraorbital torus = a ridge on the frontal bone above the eye socket
  2988. supraorbital vein = drains the front of the scalp
  2989. suprarenal gland = either of a pair of complex endocrine glands situated near the kidney
  2990. supratrochlear vein = drains the front of the scalp
  2991. sura = the muscular back part of the shank
  2992. sutura = an immovable joint
  2993. sutura coronalis = the suture between the parietal and frontal bones of the skull
  2994. sutura frontalis = the suture between two halves of the frontal bone
  2995. sutura intermaxillaris = the suture between the two maxillae of the upper jawbone
  2996. sutura internasalis = the suture between the two nasal bones
  2997. sutura lamboidea = the suture between the occipital and parietal bones
  2998. sutura sagittalis = the suture uniting the two parietal bones
  2999. sutural bone = any of the tiny soft bones found in the sutures between cranial bones
  3000. suture = an immovable joint
  3001. sweat = salty fluid secreted by sweat glands
  3002. sweat duct = a small duct that conveys sweat from a sudoriferous gland to the surface of the skin
  3003. sweat gland = any of the glands in the skin that secrete perspiration
  3004. Sylvian aqueduct = a canal connecting the third and fourth ventricles
  3005. Sylvian fissure = the deepest and most prominent of the cortical fissures
  3006. sympathetic nervous system = originates in the thoracic regions of the spinal cord; opposes physiological effects of the parasympathetic: reduces digestive secretions; speeds the heart
  3007. symphysion = the most forward point of the alveolar process of the mandible
  3008. synapse = the junction between two neurons (axon-to-dendrite) or between a neuron and a muscle
  3009. syncytium = a mass of cytoplasm containing several nuclei and enclosed in a membrane but no internal cell boundaries
  3010. synovia = viscid lubricating fluid secreted by the membrane lining joints and tendon sheaths etc.
  3011. synovial fluid = viscid lubricating fluid secreted by the membrane lining joints and tendon sheaths etc.
  3012. synovial joint = a joint so articulated as to move freely
  3013. synovial membrane = a thin membrane in synovial (freely moving) joints that lines the joint capsule and secretes synovial fluid
  3014. synovium = a thin membrane in synovial (freely moving) joints that lines the joint capsule and secretes synovial fluid
  3015. system = the living body considered as made up of interdependent components forming a unified whole / a group of physiologically or anatomically related organs or parts
  3016. system of macrophages = a widely distributed system of free and fixed macrophages derived from bone marrow
  3017. systema alimentarium = the system that makes food absorbable into the body
  3018. systema digestorium = the system that makes food absorbable into the body
  3019. systema lymphaticum = the interconnected system of spaces and vessels between body tissues and organs by which lymph circulates throughout the body
  3020. systema nervosum = the sensory and control apparatus consisting of a network of nerve cells
  3021. systema nervosum centrale = the portion of the vertebrate nervous system consisting of the brain and spinal cord
  3022. systema nervosum periphericum = the section of the nervous system lying outside the brain and spinal cord
  3023. systema respiratorium = the system for taking in oxygen and giving off carbon dioxide
  3024. systema skeletale = the hard structure (bones and cartilages) that provides a frame for the body of an animal
  3025. systema urogenitale = the system that includes all organs involved in reproduction and in the formation and voidance of urine
  3026. T = hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells / thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity
  3027. T cell = a small lymphocyte developed in the thymus
  3028. T lymphocyte = a small lymphocyte developed in the thymus
  3029. tail = the fleshy part of the human body that you sit on
  3030. tail bone = the end of the vertebral column in humans and tailless apes
  3031. tail end = the fleshy part of the human body that you sit on
  3032. talus = the bone in the ankle that articulates with the leg bones to form the ankle joint
  3033. taret organ = organ most affected by a particular hormone
  3034. target cell = an abnormal red blood cell with the appearance of a dark ring surrounding a dark center
  3035. target organ = organ intended to receive the therapeutic dose of a radioactive substance
  3036. tarsal = any bone of the tarsus
  3037. tarsal bone = any bone of the tarsus
  3038. tarsal gland = a long sebaceous gland that lubricates the eyelids
  3039. tarsus = the part of the foot of a vertebrate between the metatarsus and the leg
  3040. taste bud = an oval sensory end organ on the surface of the tongue
  3041. taste cell = an epithelial cell in a taste bud that activates sensory fibers of the facial nerve or the glossopharyngeal nerve or the vagus nerve
  3042. tastebud = an oval sensory end organ on the surface of the tongue
  3043. tear = a drop of the clear salty saline solution secreted by the lacrimal glands
  3044. tear duct = any of several small ducts that carry tears from the lacrimal glands
  3045. tear gland = any of the glands in the eyes that secrete tears
  3046. tear sac = either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands
  3047. teardrop = a drop of the clear salty saline solution secreted by the lacrimal glands
  3048. teat = the small projection of a mammary gland
  3049. teeth = the kind and number and arrangement of teeth (collectively) in a person or animal
  3050. tegument = a natural protective body covering and site of the sense of touch
  3051. telencephalon = the anterior division of the forebrain
  3052. telocentric chromosome = a chromosome like a straight rod with the centromere in terminal position
  3053. telomere = either (free) end of a eukaryotic chromosome
  3054. temple = the flat area on either side of the forehead
  3055. temporal artery = any of the three arteries on either side of the brain supplying the cortex of the temporal lobe
  3056. temporal bone = a thick bone forming the side of the human cranium and encasing the inner ear
  3057. temporal canthus = the outer corner of the eye
  3058. temporal cortex = that part of the cerebral cortex in either hemisphere of the brain lying inside the temples of the head
  3059. temporal gyrus = any of the convolutions of the outer surface of the temporal lobe of the cerebrum
  3060. temporal lobe = that part of the cerebral cortex in either hemisphere of the brain lying inside the temples of the head
  3061. temporal muscle = muscle extending from the temporal fossa to the coronoid process of the mandible
  3062. temporal vein = any of several veins draining the temporal region
  3063. temporalis = muscle extending from the temporal fossa to the coronoid process of the mandible
  3064. temporalis muscle = muscle extending from the temporal fossa to the coronoid process of the mandible
  3065. temporomandibular joint = the joint between the head of the lower jawbone and the temporal bone
  3066. tendon = a cord or band of inelastic tissue connecting a muscle with its bony attachment
  3067. tendon of Achilles = a large tendon that runs from the heel to the calf
  3068. tensor = any of several muscles that cause an attached structure to become tense or firm
  3069. tensor tympani = a small muscle in the middle ear that tenses to protect the eardrum
  3070. tenth cranial nerve = a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera
  3071. tentorial sinus = an unpaired sinus of the dura mater
  3072. tentorium = a fold of dura mater that covers the cerebellum and supports the occipital lobes of the cerebrum
  3073. teres = either of two muscles in the shoulder region that move the shoulders and arms
  3074. teres major = teres muscle that moves the arm and rotates it medially
  3075. teres major muscle = teres muscle that moves the arm and rotates it medially
  3076. teres minor = teres muscle that adducts the arm and rotates it laterally
  3077. teres minor muscle = teres muscle that adducts the arm and rotates it laterally
  3078. teres muscle = either of two muscles in the shoulder region that move the shoulders and arms
  3079. testicle = one of the two male reproductive glands that produce spermatozoa and secrete androgens
  3080. testicular artery = a branch of the aorta supplying the testicles
  3081. testicular vein = a vein from the testicles
  3082. testis = one of the two male reproductive glands that produce spermatozoa and secrete androgens
  3083. tetraiodothyronine = hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
  3084. thalamostriate vein = a vein serving the thalamus and corpus striatum
  3085. thalamus = large egg-shaped structures of grey matter that form the dorsal subdivision of the diencephalon
  3086. thalmencephalon = the posterior division of the forebrain
  3087. thatch = hair resembling thatched roofing material
  3088. thenar = the inner surface of the hand from the wrist to the base of the fingers / the fleshy area of the palm at the base of the thumb
  3089. thermoreceptor = a sensory receptor that responds to heat and cold
  3090. thigh = the part of the leg between the hip and the knee
  3091. thighbone = the longest and thickest bone of the human skeleton
  3092. third cranial nerve = supplies extrinsic muscles of the eye
  3093. third eye = a sensory structure capable of light reception located on the dorsal side of the diencephalon in various reptiles
  3094. third eyelid = a protective fold of skin in the eyes of reptiles and birds and some mammals
  3095. third tonsil = a collection of lymphatic tissue in the throat behind the uvula
  3096. third ventricle = a narrow ventricle in the midplane below the corpus callosum
  3097. thoracic aorta = a branch of the descending aorta
  3098. thoracic cavity = the cavity in the vertebrate body enclosed by the ribs between the diaphragm and the neck and containing the lungs and heart
  3099. thoracic duct = the major duct of the lymphatic system
  3100. thoracic nerve = any of twelve pairs of spinal nerves emerging from the thoracic region of the spinal cord
  3101. thoracic vein = veins that drain the thoracic walls
  3102. thoracic vertebra = one of 12 vertebrae in the human vertebral column
  3103. thoracoepigastric vein = a vein arising from the region of the superficial epigastric vein and opening into the axillary vein or thoracic vein
  3104. thorax = the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates / the middle region of the body of an arthropod between the head and the abdomen
  3105. throat = the passage to the stomach and lungs
  3106. thumb = the thick short innermost digit of the forelimb
  3107. thumbnail = the nail of the thumb
  3108. thymosin = hormone secreted by the thymus
  3109. thymus = a ductless glandular organ at the base of the neck that produces lymphocytes and aids in producing immunity
  3110. thymus gland = a ductless glandular organ at the base of the neck that produces lymphocytes and aids in producing immunity
  3111. thyrocalcitonin = thyroid hormone that tends to lower the level of calcium in the blood plasma and inhibit resorption of bone
  3112. thyroid = located near the base of the neck
  3113. thyroid cartilage = the largest cartilage of the larynx
  3114. thyroid gland = located near the base of the neck
  3115. thyroid hormone = any of several closely related compounds that are produced by the thyroid gland and are active metabolically
  3116. thyroid vein = any of several small veins draining blood from the thyroid area
  3117. thyroxin = hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
  3118. thyroxine = hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
  3119. tibia = the inner and thicker of the two bones of the human leg between the knee and ankle
  3120. tibia vara = a leg bowed outward at the knee
  3121. tibial vein = veins of the lower leg
  3122. tibialis = either of two skeletal muscle in each leg arising from the tibia
  3123. tibialis anterior = a muscle running from the tibia to the first metatarsal and cuneiform bones
  3124. tibialis anticus = a muscle running from the tibia to the first metatarsal and cuneiform bones
  3125. tibialis muscle = either of two skeletal muscle in each leg arising from the tibia
  3126. tibialis posterior = a deep muscle of the leg
  3127. tibialis posticus = a deep muscle of the leg
  3128. ticker = the hollow muscular organ located behind the sternum and between the lungs
  3129. tiptoe = the tip of a toe
  3130. tissue = part of an organism consisting of an aggregate of cells having a similar structure and function
  3131. tissue layer = a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
  3132. tit = either of two soft fleshy milk-secreting glandular organs on the chest of a woman / the small projection of a mammary gland
  3133. titty = either of two soft fleshy milk-secreting glandular organs on the chest of a woman
  3134. tobacco juice = saliva colored brown by tobacco
  3135. toe = one of the digits of the foot / forepart of a hoof
  3136. toenail = the nail at the end of a toe
  3137. tomentum = a network of tiny blood vessels between the cerebral surface of the pia mater and the cerebral cortex
  3138. tomentum cerebri = a network of tiny blood vessels between the cerebral surface of the pia mater and the cerebral cortex
  3139. tongue = a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity
  3140. tonsil = either of two masses of lymphatic tissue one on each side of the oral pharynx
  3141. tonsilla = either of two masses of lymphatic tissue one on each side of the oral pharynx
  3142. tonsilla adenoidea = a collection of lymphatic tissue in the throat behind the uvula
  3143. tonsilla pharyngealis = a collection of lymphatic tissue in the throat behind the uvula
  3144. tonsure = the shaved crown of a monk's or priest's head
  3145. tool = obscene terms for penis
  3146. tooshie = the fleshy part of the human body that you sit on
  3147. tooth = hard bonelike structures in the jaws of vertebrates
  3148. tooth enamel = hard white substance covering the crown of a tooth
  3149. tooth socket = a bony socket in the alveolar ridge that holds a tooth
  3150. toothbrush = slang for a mustache
  3151. torso = the body excluding the head and neck and limbs
  3152. trabecula = rod-shaped structures of fibrous tissue that divide an organ into parts (as in the penis) or stabilize the structure of an organ
  3153. trachea = membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi / one of the tubules forming the respiratory system of most insects and many arachnids
  3154. tracheal vein = several small veins from the trachea
  3155. tract = a bundle of myelinated nerve fibers following a path through the brain / a system of body parts that together serve some particular purpose
  3156. tragus = a small cartilaginous flap in front of the external opening of the ear
  3157. transforming gene = a gene that disposes normal cells to change into cancerous tumor cells
  3158. transgene = an exogenous gene introduced into the genome of another organism
  3159. transplant = tissue or organ transplanted from a donor to a recipient
  3160. transverse colon = the part of the large intestine that extends across the abdominal cavity and joins the ascending to the descending colon
  3161. transverse muscle of abdomen = a flat muscle with transverse fibers that forms the anterior and lateral walls of the abdominal cavity
  3162. transverse process = one of two processes that extend from each vertebra and provide the point of articulation for the ribs
  3163. transverse sinus = a paired dural sinus
  3164. transversus abdominis = a flat muscle with transverse fibers that forms the anterior and lateral walls of the abdominal cavity
  3165. transversus abdominis muscle = a flat muscle with transverse fibers that forms the anterior and lateral walls of the abdominal cavity
  3166. trap = informal terms for the mouth
  3167. trapezium = the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals
  3168. trapezium bone = the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals
  3169. trapezius = either of two flat triangular muscles of the shoulder and upper back that are involved in moving the shoulders and arms
  3170. trapezius muscle = either of two flat triangular muscles of the shoulder and upper back that are involved in moving the shoulders and arms
  3171. trapezoid = the wrist bone between the trapezium and the capitate bones
  3172. trapezoid bone = the wrist bone between the trapezium and the capitate bones
  3173. tress = a hairdo formed by braiding or twisting the hair
  3174. triceps = any skeletal muscle having three origins
  3175. triceps brachii = the skeletal muscle having three origins that extends the forearm when it contracts
  3176. tricuspid valve = valve with three cusps; situated between the right atrium and the right ventricle
  3177. trigeminal = the main sensory nerve of the face and motor nerve for the muscles of mastication
  3178. trigeminal nerve = the main sensory nerve of the face and motor nerve for the muscles of mastication
  3179. trigeminus = the main sensory nerve of the face and motor nerve for the muscles of mastication
  3180. trigonum cerebrale = an arched bundle of white fibers at the base of the brain by which the hippocampus of each hemisphere projects to the contralateral hippocampus and to the thalamus and mamillary bodies
  3181. triiodothyronine = thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity
  3182. triquetral = a wrist bone that articulates with the pisiform and hamate and lunate bones
  3183. triquetral bone = a wrist bone that articulates with the pisiform and hamate and lunate bones
  3184. trochanter = one of the bony prominences developed near the upper extremity of the femur to which muscles are attached
  3185. trochlear = either of the two cranial nerves on either side that control the superior oblique muscles of the eyes
  3186. trochlear nerve = either of the two cranial nerves on either side that control the superior oblique muscles of the eyes
  3187. trochlearis = either of the two cranial nerves on either side that control the superior oblique muscles of the eyes
  3188. true glottis = the space between the two true vocal folds
  3189. true rib = one of the first seven ribs in a human being which attach to the sternum
  3190. true vocal cord = either of the two lower vocal folds that come together to form the glottis
  3191. true vocal fold = either of the two lower vocal folds that come together to form the glottis
  3192. truncus atrioventricularis = a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract
  3193. truncus celiacus = an artery that originates from the abdominal aorta just below the diaphragm and branches into the left gastric artery and the common hepatic artery and the splenic artery
  3194. truncus pulmonalis = the artery that carries venous blood from the right ventricle of the heart and divides into the right and left pulmonary arteries
  3195. trunk = the body excluding the head and neck and limbs
  3196. tube = any hollow cylindrical body structure
  3197. tube-shaped structure = any hollow cylindrical body structure
  3198. tubercle = a protuberance on a bone especially for attachment of a muscle or ligament
  3199. tuberosity = a protuberance on a bone especially for attachment of a muscle or ligament
  3200. tubular cavity = a cavity having the shape of a tube
  3201. tubule = a small tube
  3202. tum = an enlarged and muscular saclike organ of the alimentary canal
  3203. tummy = an enlarged and muscular saclike organ of the alimentary canal
  3204. tumor suppressor gene = a suppressor gene that blocks unscheduled cell division
  3205. tunic = an enveloping or covering membrane or layer of body tissue
  3206. tunica = an enveloping or covering membrane or layer of body tissue
  3207. tunica albuginea testes = whitish cover of the testicle
  3208. tunica conjunctiva bulbi = the part of the conjunctiva covering the anterior face of the sclera and the surface epithelium of the cornea
  3209. tunica conjunctiva palpebrarum = the part of the conjunctiva lining the posterior surface of the eyelids
  3210. turbinal = any of the scrolled spongy bones of the nasal passages in man and other vertebrates
  3211. turbinate = any of the scrolled spongy bones of the nasal passages in man and other vertebrates
  3212. turbinate bone = any of the scrolled spongy bones of the nasal passages in man and other vertebrates
  3213. tush = the fleshy part of the human body that you sit on
  3214. twat = obscene terms for female genitals
  3215. twelfth cranial nerve = supplies intrinsic muscles of the tongue and other tongue muscles
  3216. twist = a hairdo formed by braiding or twisting the hair
  3217. tympanic bone = the bone enclosing the middle ear
  3218. tympanic cavity = the main cavity of the ear
  3219. tympanic membrane = the membrane in the ear that vibrates to sound
  3220. tympanic vein = veins from the tympanic cavity that empty into the retromandibular vein
  3221. tympanum = the membrane in the ear that vibrates to sound / the main cavity of the ear
  3222. type A = the blood group whose red cells carry the A antigen
  3223. type AB = the blood group whose red cells carry both the A and B antigens
  3224. type B = the blood group whose red cells carry the B antigen
  3225. type O = the blood group whose red cells carry neither the A nor B antigens
  3226. ulna = the inner and longer of the two bones of the human forearm
  3227. ulnar artery = large artery that branches from the brachial artery to supply the muscles of the forearm and wrist and hand
  3228. ulnar nerve = a nerve running along the inner side of the arm and passing near the elbow
  3229. ulnar vein = any of several veins of the forearm
  3230. umbilical = membranous duct connecting the fetus with the placenta
  3231. umbilical cord = membranous duct connecting the fetus with the placenta
  3232. umbilical vein = a vein in the umbilical cord
  3233. umbilicus = a scar where the umbilical cord was attached
  3234. umbo = a slight rounded elevation where the malleus attaches to the eardrum
  3235. unciform bone = the wrist bone in line with the 4th and 5th fingers
  3236. underbelly = the soft belly or underside of an animal's body
  3237. underbody = the soft belly or underside of an animal's body
  3238. underlip = the lower lip
  3239. undescended testicle = a testis that fails to move into the scrotum as the male fetus develops
  3240. undescended testis = a testis that fails to move into the scrotum as the male fetus develops
  3241. unguis = any rigid body structure composed primarily of keratin
  3242. upper jaw = the jaw in vertebrates that is fused to the cranium
  3243. upper jawbone = the jaw in vertebrates that is fused to the cranium
  3244. upper respiratory tract = the nose and throat and trachea
  3245. ureter = either of a pair of thick-walled tubes that carry urine from the kidney to the urinary bladder
  3246. urethra = duct through which urine is discharged in most mammals and which serves as the male genital duct
  3247. urethral orifice = the orifice through which urine is discharged
  3248. urethral sphincter = a striated sphincter muscle that constricts the urethra
  3249. urinary apparatus = the system that includes all organs involved in reproduction and in the formation and voidance of urine
  3250. urinary bladder = a membranous sac for temporary retention of urine
  3251. urinary organ = an organ that separates waste substances from the blood and discharges them
  3252. urinary system = the system that includes all organs involved in reproduction and in the formation and voidance of urine
  3253. urinary tract = the organs and tubes involved in the production and excretion of urine
  3254. uriniferous tubule = any of the small tubules that are the excretory units of the vertebrate kidney
  3255. urogenital apparatus = the system that includes all organs involved in reproduction and in the formation and voidance of urine
  3256. urogenital cleft = the fissure between the labia majora
  3257. urogenital system = the system that includes all organs involved in reproduction and in the formation and voidance of urine
  3258. uterine artery = a branch of the internal iliac artery that supplies the uterus and the upper part of the vagina
  3259. uterine cavity = the space inside the uterus between the cervical canal and the Fallopian tubes
  3260. uterine cervix = necklike opening to the uterus
  3261. uterine tube = either of a pair of tubes conducting the egg from the ovary to the uterus
  3262. uterine vein = one of two veins on each side that arise from the uterine plexus and empty into the internal iliac vein
  3263. uterus = a hollow muscular organ in the pelvic cavity of females
  3264. utricle = a small pouch into which the semicircular canals open
  3265. utriculus = a small pouch into which the semicircular canals open
  3266. uvea = the part of the eye that contains the iris and ciliary body and choroid
  3267. uveoscleral pathway = a tubule that drains excess aqueous humor
  3268. uvula = a small pendant fleshy lobe at the back of the soft palate
  3269. vacuole = a tiny cavity filled with fluid in the cytoplasm of a cell
  3270. vagina = the lower part of the female reproductive tract
  3271. vaginal artery = a branch of the internal iliac that provides blood for the vagina and the base of the bladder and the rectum
  3272. vaginal smear = smear taken from the vaginal mucosa for cytological analysis
  3273. vagus = a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera
  3274. vagus nerve = a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera
  3275. vallecula = any furrow or channel on a bodily structure or part
  3276. valve = a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
  3277. valvelet = a small valve
  3278. valvula = a small valve
  3279. valvule = a small valve
  3280. vandyke = a short pointed beard
  3281. vandyke beard = a short pointed beard
  3282. varicose vein = a vein that is permanently dilated
  3283. vas = a tube in which a body fluid circulates
  3284. vas deferens = a duct that carries spermatozoa from the epididymis to the ejaculatory duct
  3285. vasa brevis = several small arteries branching off of the splenic artery and going to the greater curvature of the stomach
  3286. vasa efferentia = the several highly convoluted tubules that lead from the rete testis to the vas deferens and form the head of the epididymis
  3287. vasa vasorum = any small blood vessel ramifying on the outside of a major artery or vein
  3288. vascular structure = a structure composed of or provided with blood vessels
  3289. vascular system = the vessels and tissue that carry or circulate fluids such as blood or lymph or sap through the body of an animal or plant
  3290. vasopressin = hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus
  3291. vegetation = an abnormal growth or excrescence
  3292. vegetative cell = any of the cells of a plant or animal except the reproductive cells
  3293. veil = the inner membrane of embryos in higher vertebrates
  3294. vein = a blood vessel that carries blood from the capillaries toward the heart
  3295. vein of penis = a vein serving the penis
  3296. velum = a muscular flap that closes off the nasopharynx during swallowing or speaking
  3297. vena = a blood vessel that carries blood from the capillaries toward the heart
  3298. vena anastomotica = either of two communicating veins serving the brain
  3299. vena angularis = a short vein formed by the supraorbital vein and the supratrochlear vein and continuing as the facial vein
  3300. vena appendicularis = a vein that accompanies the appendicular artery and empties into the ileocolic vein
  3301. vena arcuata renis = veins that receive blood from interlobular veins of kidney and rectal venules
  3302. vena auricularis = one of two veins serving the ear region
  3303. vena axillaris = a continuation of the basilic vein and brachial vein that becomes the subclavian vein
  3304. vena azygos = one of a system of veins that drain the thoracic and abdominal walls
  3305. vena basalis = a large vein passing along the medial surface of the temporal lobe and emptying into the great cerebral vein
  3306. vena basilica = a vein that drains the back of the hand and forearm and empties into the axillary vein
  3307. vena basivertebralis = one of a number of veins draining the spongy substance of the vertebrae and emptying into the anterior internal vertebral venous plexus
  3308. vena brachialis = two veins in either arm that accompany the brachial artery and empty into the axillary vein
  3309. vena brachiocephalica = veins formed by the union of the internal jugular and subclavian veins
  3310. vena bronchialis = veins serving the bronchi
  3311. vena bulbi penis = vein of the head of the penis
  3312. vena bulbi vestibuli = vein of the vestibular bulb
  3313. vena canaliculi cochleae = vein of the cochlear canal
  3314. vena cava = either of two large veins that return oxygen-depleted blood to the right atrium of the heart
  3315. vena centrales retinae = vein formed by the union of the retinal veins
  3316. vena centralis glandulae suprarenalis = a single draining vein; on the right it empties into the inferior vena cava
  3317. vena cephalica = a large vein of the arm that empties into the axillary vein
  3318. vena cephalica accessoria = a vein that passes along the radial edge of the forearm and joins the cephalic vein near the elbow
  3319. vena cerebellum = the veins draining the cerebellum
  3320. vena cerebri = any of several veins serving the cerebral hemispheres of the brain
  3321. vena cerebri anterior = accompanies the anterior cerebral artery and empties into the basal vein
  3322. vena cerebri magna = a cerebral vein formed by the two internal cerebral veins and continuing into the sinus rectus
  3323. vena cerebri media = either of two cerebral veins
  3324. vena cerebrum internus = two paired veins passing caudally near the midline and uniting to form the great cerebral vein
  3325. vena cerebrum superior = a cerebral vein that drains the dorsal convexity of the cerebral hemisphere and empties into the cavernous sinus
  3326. vena cervicalis profunda = a vein that accompanies an artery of the same name
  3327. vena choroidea = either of two veins serving the choroid coat of the eye
  3328. vena circumflexa = any of several curved parallel veins accompanying arteries of the same name
  3329. vena circumflexa ilium = accompanies the artery of the same name
  3330. vena circumflexus femoris = either of two veins that accompany arteries of the same name serving the hip and thigh
  3331. vena clitoridis = veins that serve the clitoris
  3332. vena colica = vein serving the large intestine
  3333. vena comitans = a vein accompanying another structure
  3334. vena cutanea = one of a number of veins in the subcutaneous tissue that empty into deep veins
  3335. vena cystica = vein that drains the gallbladder
  3336. vena digitalis = one of the veins serving the fingers or toes
  3337. vena diploica = one of the veins serving the spongy part of the cranial bones
  3338. vena dorsalis clitoridis profunda = deep dorsal vein of the clitoris
  3339. vena emissaria = one of several connecting veins in the scalp and head that drain blood from sinuses in the dura mater to veins outside the skull
  3340. vena epigastrica inferior = empties into the external iliac vein
  3341. vena epigastrica superficialis = empties into the great saphenous vein
  3342. vena ethmoidalis = veins that drain the ethmoidal sinuses and empty into the superior ophthalmic vein
  3343. vena facialis = any of several veins draining the face
  3344. vena facialis anterior = a continuation of the angular vein
  3345. vena femoralis = a vein that accompanies the femoral artery in the same sheath; a continuation of the popliteal vein
  3346. vena gastrica = one of several veins draining the stomach walls
  3347. vena gastrica sinistra = arises from a union of veins from the gastric cardia; runs in the lesser omentum
  3348. vena gastrica-dextra = receives veins from the upper surfaces of the stomach and empties into the portal vein
  3349. vena gastroomentalis = one of two veins serving the great curvature of the stomach
  3350. vena genus = veins that drain blood from structures around the knee
  3351. vena gluteus = veins draining the gluteal muscles on either side of the body
  3352. vena hemiazygos accessoria = a vein formed by the union of the 4th to 7th posterior intercostal veins
  3353. vena hemizygos = a continuation of the left ascending lumbar vein
  3354. vena hepatica = a vein that drains the liver
  3355. vena ileocolica = a vein that drains the end of the ileum and the appendix and the cecum and the lower part of the ascending colon
  3356. vena iliaca = one of three veins draining the pelvic area
  3357. vena iliolumbalis = a branch of the internal iliac vein
  3358. vena intercapitalis = veins connecting the dorsal and palmar veins of the hand or the dorsal and plantar veins of the foot
  3359. vena intercostalis = several veins draining the intercostal spaces of the rib cage
  3360. vena intervertebralis = one of several veins accompanying spinal nerves
  3361. vena jugularis = veins in the neck that return blood from the head
  3362. vena labialis = a vein draining the lips of the mouth / veins draining the lips of the vulva
  3363. vena labialis inferior = a tributary of the facial vein that drains the lower lip
  3364. vena labialis superior = a tributary of the facial vein that drains the upper lip
  3365. vena lacrimalis = drains the lacrimal gland
  3366. vena laryngea = one of two veins draining the larynx
  3367. vena lienalis = a vein formed by several small veins on the surface of the spleen
  3368. vena lingualis = a vein that receives blood from the tongue and the floor of the mouth and empties into the internal jugular or the facial vein
  3369. vena lumbalis = veins that drain the posterior body wall and the lumbar vertebral venous plexuses
  3370. vena maxillaris = posterior continuation of the pterygoid plexus
  3371. vena mesenterica = a tributary of the portal vein passing from the intestine between the two layers of mesentery
  3372. vena metacarpus = dorsal and palmar veins of the hand
  3373. vena metatarsus = dorsal and plantar branches of veins serving the metatarsal region of the foot
  3374. vena musculophrenica = veins that drain the upper abdominal wall and the lower intercostal spaces and the abdomen
  3375. vena nasalis externa = one of the veins that drain the external nose and empty into the angular or facial vein
  3376. vena nasofrontalis = a vein located in the anterior medial part of the orbit
  3377. vena obliqua atrii sinistri = a tributary of the coronary sinus
  3378. vena obturatoria = a vein formed by the union of tributaries that drain the hip joints and thigh muscles
  3379. vena occipitalis = a vein that drains the occipital region
  3380. vena ophthalmica = either of two veins that serve the eye
  3381. vena ovarica = one of the veins that drain the ovaries; the right opens into the inferior vena cava
  3382. vena palatina = a vein that drains the region of the palate and empties into the facial vein
  3383. vena paraumbilicalis = small veins arising in skin around the navel
  3384. vena pectoralis = veins that drain the pectoral muscles and empty into the subclavian vein
  3385. vena perforantis = veins that accompany the perforating arteries; drain leg muscles
  3386. vena pericardiaca = several small veins from the pericardium
  3387. vena peroneus = accompany the peroneal arteries
  3388. vena pharyngeus = veins from the pharyngeal plexus that empty into the internal jugular vein
  3389. vena phrenica = either of two veins that drain the diaphragm
  3390. vena poplitea = a vein arising in the knee and ascending to become the femoral vein
  3391. vena portae = a short vein that carries blood into the liver
  3392. vena posterior ventriculi sinistri = arises near the apex of the heart and empties into the coronary sinus
  3393. vena profunda penis = deep vein of the penis
  3394. vena pulmanalis inferior = either of two pulmonary veins (left and right) returning blood from the inferior lobes of the lungs
  3395. vena pulmonalis = any of four veins that carry arterial blood from the lungs to the left atrium of the heart
  3396. vena pulmonalis superior = either of two pulmonary veins (left and right) returning blood from the superior lobes of the lungs
  3397. vena pylorica = a tributary of the right gastric vein
  3398. vena radialis = superficial veins ascending the radial side of the forearm
  3399. vena rectalis = any of several veins draining the walls of the anal canal and rectum
  3400. vena renalis = veins that accompany renal arteries
  3401. vena retromandibularis = posterior branch of the facial vein
  3402. vena sacralis = vein of the sacral region
  3403. vena saphena = either of two chief superficial veins of the leg that drain blood from the foot
  3404. vena scapularis dorsalis = vein that is a tributary of the subclavian vein or external jugular vein and accompanies the descending scapular artery
  3405. vena scrotalis = veins passing from the scrotum to the pudendal veins
  3406. vena sigmoideus = tributaries of the inferior mesenteric vein
  3407. vena spinalis = veins that drain the spinal cord
  3408. vena sternocleidomastoidea = drains the sternocleidomastoid muscle
  3409. vena stylomastoidea = a vein that drains the tympanic cavity and empties into the retromandibular vein
  3410. vena subclavia = a continuation of the axillary vein
  3411. vena sublingualis = a tributary of the lingual vein
  3412. vena supraorbitalis = drains the front of the scalp
  3413. vena supratrochlearis = drains the front of the scalp
  3414. vena temporalis = any of several veins draining the temporal region
  3415. vena testicularis = a vein from the testicles
  3416. vena thoracica = veins that drain the thoracic walls
  3417. vena thoracoepigastrica = a vein arising from the region of the superficial epigastric vein and opening into the axillary vein or thoracic vein
  3418. vena thyroidea = any of several small veins draining blood from the thyroid area
  3419. vena tibialis = veins of the lower leg
  3420. vena trachealis = several small veins from the trachea
  3421. vena ulnaris = any of several veins of the forearm
  3422. vena umbilicalis = a vein in the umbilical cord
  3423. vena vertebralis = a vein that goes through the foramina of the cervical vertebrae and forms a plexus around the vertebral artery
  3424. vena vertebralis accessoria = a vein that accompanies the vertebral vein but passes through the foramen of the transverse process of the 7th cervical vertebra and empties into the brachiocephalic vein
  3425. vena vertebralis anterior = a vein that accompanies the ascending cervical artery and opens into the vertebral vein
  3426. vena vesicalis = veins that drain the vesical plexus and join the internal iliac veins
  3427. vena vestibularis = veins that drain the saccule and utricle
  3428. vena vorticosum = a vein formed by branches from the back surface of the eye and the ciliary body
  3429. venae centrales hepatis = terminal branches of the hepatic veins that lie in the hepatic lobules and receive blood from the liver sinusoids
  3430. venae cerebrum inferior = veins that drain the undersurface of the cerebral hemispheres and empty into the cavernous and transverse sinuses
  3431. venae ciliares = small veins coming from the ciliary body
  3432. venae conjunctivales = veins draining the conjunctiva
  3433. venae dorsales clitoridis superficiales = superficial dorsal veins of the clitoris
  3434. venae dorsales penis profunda = deep dorsal vein of the penis
  3435. venae dorsales penis superficiales = superficial dorsal veins of the penis
  3436. venae epigastricae superiores = veins that accompany the superior epigastric artery
  3437. venae episclerales = small veins in the sclera near the corneal margin
  3438. venae esophageae = small veins from the esophagus emptying into the brachiocephalic vein or the azygos veins
  3439. venae interlobulares hepatis = interlobular veins of the liver
  3440. venae interlobulares renis = interlobular veins of the kidney
  3441. venae labiales anteriores = veins from the labia majora to the external pudendal vein
  3442. venae labiales posteriores = veins that pass posterior from the labia majora to the internal pudendal vein
  3443. venae meningeae = veins at accompany the meningeal arteries
  3444. venae palpebrales = veins of the eyelids
  3445. venae pancreatica = veins draining the pancreas and emptying into the superior mesenteric and splenic veins
  3446. venae profundae clitoridis = deep veins of the clitoris
  3447. venae pudendum = vein of the pudendum
  3448. venae renis = veins of the kidney
  3449. venae sclerales = tributaries of the anterior ciliary veins that drain the sclera of the eye
  3450. venation = the system of venous blood vessels in an animal
  3451. venous blood = blood found in the veins
  3452. venous blood system = the system of venous blood vessels in an animal
  3453. venous blood vessel = a blood vessel that carries blood from the capillaries toward the heart
  3454. venous sinus = a wide channel containing blood
  3455. venter = a bulging body part (as the belly of a muscle) / the womb / the region of the body of a vertebrate between the thorax and the pelvis
  3456. ventral horn = one of the two roots of a spinal nerve that passes ventrally from the spinal cord and that consists of motor fibers
  3457. ventral root = one of the two roots of a spinal nerve that passes ventrally from the spinal cord and that consists of motor fibers
  3458. ventricle = a chamber of the heart that receives blood from an atrium and pumps it to the arteries / one of four connected cavities in the brain
  3459. ventricular fold = either of the upper two vocal cords that are not involved in vocalization
  3460. venula = a minute vein continuous with a capillary
  3461. venule = a minute vein continuous with a capillary
  3462. vermiform appendix = a vestigial process that extends from the lower end of the cecum and that resembles a small pouch
  3463. vermiform process = a vestigial process that extends from the lower end of the cecum and that resembles a small pouch
  3464. vermis = the narrow central part of the cerebellum between the two hemispheres
  3465. vermis cerebelli = the narrow central part of the cerebellum between the two hemispheres
  3466. vertebra = one of the bony segments of the spinal column
  3467. vertebral arch = a structure arising dorsally from a vertebral centrum and enclosing the spinal cord
  3468. vertebral artery = the first branch of the subclavian artery
  3469. vertebral canal = the canal in successive vertebrae through which the spinal cord passes
  3470. vertebral column = the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
  3471. vertebral vein = a vein that goes through the foramina of the cervical vertebrae and forms a plexus around the vertebral artery
  3472. vertebrate foot = the extremity of the limb in vertebrates
  3473. vesica = a distensible membranous sac
  3474. vesical vein = veins that drain the vesical plexus and join the internal iliac veins
  3475. vesicle = a small anatomically normal sac or bladderlike structure
  3476. vessel = a tube in which a body fluid circulates
  3477. vestibular apparatus = organs mediating the labyrinthine sense
  3478. vestibular fold = either of the upper two vocal cords that are not involved in vocalization
  3479. vestibular gland = a gland that opens into the vestibule of the vagina
  3480. vestibular system = organs mediating the labyrinthine sense
  3481. vestibular vein = veins that drain the saccule and utricle
  3482. vestibule = any of various bodily cavities leading to another cavity
  3483. vestibule of the ear = the central cavity of the bony labyrinth of the ear
  3484. vestibule of the vagina = the space between the labia minora containing the orifice of the urethra
  3485. vestibulocochlear nerve = a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea
  3486. virginal membrane = a fold of tissue that partly covers the entrance to the vagina of a virgin
  3487. visage = the human face
  3488. viscera = internal organs collectively
  3489. visceral brain = a system of functionally related neural structures in the brain that are involved in emotional behavior
  3490. visceral pericardium = the innermost of the two layers of the pericardium
  3491. visceral pleura = pleura that covers the lungs
  3492. viscus = a main organ that is situated inside the body
  3493. visual area = the cortical area that receives information from the lateral geniculate body of the thalamus
  3494. visual cell = one of the cells of the retina that is sensitive to light
  3495. visual cortex = the cortical area that receives information from the lateral geniculate body of the thalamus
  3496. visual system = the sensory system for vision
  3497. vital organ = a bodily organ that is essential for life
  3498. vitals = a bodily organ that is essential for life
  3499. vitreous body = the clear colorless transparent jelly that fills the posterior chamber of the eyeball
  3500. vitreous humor = the clear colorless transparent jelly that fills the posterior chamber of the eyeball
  3501. vitreous humour = the clear colorless transparent jelly that fills the posterior chamber of the eyeball
  3502. vocal band = either of two pairs of folds of mucous membrane projecting into the larynx
  3503. vocal cord = either of two pairs of folds of mucous membrane projecting into the larynx
  3504. vocal fold = either of two pairs of folds of mucous membrane projecting into the larynx
  3505. vocal organ = any of the organs involved in speech production
  3506. voice box = a cartilaginous structure at the top of the trachea
  3507. voluntary muscle = striated muscle that can be controlled voluntarily
  3508. vomer = thin trapezoidal bone of the skull forming the posterior and inferior parts of the nasal septum
  3509. vortex vein = a vein formed by branches from the back surface of the eye and the ciliary body
  3510. vorticose vein = a vein formed by branches from the back surface of the eye and the ciliary body
  3511. vulva = external parts of the female genitalia
  3512. vulvar slit = the fissure between the labia majora
  3513. waist = the narrowing of the body between the ribs and hips
  3514. waistline = the narrowing of the body between the ribs and hips
  3515. wall = a layer (a lining or membrane) that encloses a structure
  3516. walrus moustache = a bushy droopy mustache
  3517. walrus mustache = a bushy droopy mustache
  3518. wandering nerve = a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera
  3519. wasp waist = a very slender waist
  3520. waters = the serous fluid in which the embryo is suspended inside the amnion
  3521. wattle = a fleshy wrinkled and often brightly colored fold of skin hanging from the neck or throat of certain birds (chickens and turkeys) or lizards
  3522. wave = a hairdo that creates undulations in the hair
  3523. WBC = blood cells that engulf and digest bacteria and fungi
  3524. Wernicke's area = the auditory word center
  3525. Wernicke's center = the auditory word center
  3526. whiskers = the hair growing on the lower part of a man's face
  3527. white blood cell = blood cells that engulf and digest bacteria and fungi
  3528. white blood corpuscle = blood cells that engulf and digest bacteria and fungi
  3529. white cell = blood cells that engulf and digest bacteria and fungi
  3530. white corpuscle = blood cells that engulf and digest bacteria and fungi
  3531. white matter = whitish nervous tissue of the CNS consisting of neurons and their myelin sheaths
  3532. whitehead = a small whitish lump in the skin due to a clogged sebaceous gland
  3533. whole blood = blood that has not been modified except for the addition of an anticoagulant
  3534. whorl = a strand or cluster of hair
  3535. widow's peak = a V-shaped point in the hairline in the middle of the forehead
  3536. windpipe = membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi
  3537. wisdom tooth = any of the last 4 teeth on each side of the upper and lower jaw
  3538. woman's body = the body of an adult woman
  3539. womb = a hollow muscular organ in the pelvic cavity of females
  3540. Wormian bone = any of the tiny soft bones found in the sutures between cranial bones
  3541. wrist = a joint between the distal end of the radius and the proximal row of carpal bones
  3542. wrist bone = any of the eight small bones of the wrist of primates
  3543. wrist joint = a joint between the distal end of the radius and the proximal row of carpal bones
  3544. X chromosome = the sex chromosome that is present in both sexes: singly in males and doubly in females
  3545. X-linked gene = a gene located on an X chromosome
  3546. xenograft = tissue from an animal of one species used as a temporary graft (as in cases of severe burns) on an individual of another species
  3547. xiphoid process = smallest of the three parts of the breastbone
  3548. XX = normal complement of sex chromosomes in a female
  3549. XXX = abnormal complement of three X chromosomes in a female
  3550. XXY = abnormal complement of sex hormones in a male resulting in Klinefelter's syndrome
  3551. XY = normal complement of sex hormones in a male
  3552. XYY = abnormal complement of sex hormones in a male who has two Y chromosomes
  3553. Y chromosome = the sex chromosome that is carried by men
  3554. Y-linked gene = a gene located on a Y chromosome
  3555. yap = informal terms for the mouth
  3556. yellow bile = a humor that was once believed to be secreted by the liver and to cause irritability and anger
  3557. yellow bone marrow = bone marrow that is yellow with fat
  3558. yellow marrow = bone marrow that is yellow with fat
  3559. yellow spot = a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision
  3560. zona = any encircling or beltlike structure
  3561. zona pellucida = thick membrane around the mammalian ovum; can be penetrated by one sperm in the fertilization process
  3562. zone = any encircling or beltlike structure
  3563. zonula = small beltlike zone
  3564. zonule = small beltlike zone
  3565. zygoma = the slender arch formed by the temporal process of the cheekbone that bridges to the zygomatic process of the temporal bone
  3566. zygomatic = the arch of bone beneath the eye that forms the prominence of the cheek
  3567. zygomatic arch = the slender arch formed by the temporal process of the cheekbone that bridges to the zygomatic process of the temporal bone
  3568. zygomatic bone = the arch of bone beneath the eye that forms the prominence of the cheek
  3569. zygomatic process = a slender process of the temporal bone that strengthens the zygomatic arch
  3570. zygote = the diploid cell resulting from the union of a haploid spermatozoon and ovum

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