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Dermal bone

Definition of the noun Dermal bone

What does Dermal bone mean as a name of something?

noun

  1. Bone derived from intramembranous ossification, defining essential components of the vertebrate skeleton including the skull, jaws, gills, fins, and exoskeleton.

Explanation

Dermal bone: A dermal bone or membrane bone is a bony structure derived from intramembranous ossification forming components of the vertebrate skeleton including the skull, jaws, gills, fins and exoskeleton. In contrast to endochondral bone, dermal bone does not form from cartilage that then calcifies. Dermal bone is formed within the dermis and grows by accretion only – the outer portion of the bone is deposited by osteoblasts.

Printed dictionaries and other books with definitions for Dermal bone

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Google previewSAT Subject Test Biology E/M (2017)

by Kaplan

Bone produced through the latter process is called dermal bone; the bones of the skull are examples of this. In replacement bone, such as in the long bones of the legs and arms, osteoblasts replace the cartilage that has already formed.

Google previewThe Evolution of Vertebrate Design (2015)

by Leonard B. Radinsky

The fossil ostracoderms indicate that bone first evolved as an external rather than an internal skeleton, and, because it was deposited in the skin, ostracoderm bone is called dermal bone. In many ostracoderms, the outer layer of the dermal ...

Google previewA Dictionary of Biology (1957)

by Michael Abercrombie, Clarence James Hickman, M. L. Johnson

A dermal bone.

Google previewDictionary of Zoology (1999)

by Sudhir Pradhan

DERMAL BONE A bone which develops from the mesenchyme of the dermis. Such bones are usually present in dermatocranium of tetrapod skull. DERMAL PLATE Underneath the dermis, many reptiles possess specialised scales which form ...

Google previewA Dictionary of Science (2017)

by Jonathan Law

(dermal bone) *Bone formed directly in connective tissue, rather than by replacing cartilage (compare CARTILAGE BONE). Some face bones, skull bones, and part of the clavicle are membrane bones. Small areas of membrane become ...

Google previewTaber's Cyclopedic Medical Dictionary (2017)

by Donald Venes

SYN: dermal bone; intramembraneous ...

Google previewAcademic Press Dictionary of Science and Technology (1992)

by Christopher G. Morris, Academic Press

dermal bone Anatomy, any bone that ossifies directly from mesenchyme, rather than by replacement of a preceding cartilaginous structure. Also ...

Google previewA Dictionary of Geology and Earth Sciences (2013)

by Michael Allaby

dermal bone See BONE. dermal denticle See PLACOID SCALE. dermatocranium See CRANIUM. Derryan See ATOKAN. desalination A series of processes whereby salt water is rendered potable. Desdemona (Uranus ...

Google previewThe Facts on File Dictionary of Biology (2009)

by Robert Hine, Daintith

dermal bone /der-măl/ See membrane bone. Dermaptera /der-map-tĕ-ră/ A small order of nocturnal ...

Google previewEncyclopaedia britannica (1911)

a dictionary of arts, sciences, literature and general information by Hugh Chisholm

the squamozygomatic part is a dermal bone, while the styloid process is a part of the second visceral arch. The mastoid process is not present at birth, but appears ...

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Dermal bone Meaning

Video shows what dermal bone means. Bone derived from intramembranous ossification, defining essential components of the vertebrate skeleton including the ...

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