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tonicity

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Definition of the noun tonicity

What does tonicity mean as a name of something?

noun - plural: tonicities

  1. the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli

Alternative definition of the noun tonicity

noun

  1. [medicine] The normal presence of tone or tension in a muscle or organ; tonus
  2. [science] The ability of a solution to exert an osmotic pressure upon a membrane

Explanation

Tonicity is a measure of the effective osmotic pressure gradient of two solutions separated by a semipermeable membrane. In other words, tonicity is the relative concentration of solutions that determine the direction and extent of diffusion. It is commonly used when describing the response of cells immersed in an external solution. Unlike osmotic pressure, tonicity is influenced only by solutes that cannot cross the membrane, as only these exert an effective osmotic pressure. Solutes able to freely cross the membrane do not affect tonicity because they will always be in equal concentrations on both sides of the membrane.

  • also known as Osmolaritate efectivă, Δραστική oσµωτικότητα, Δραστική ωσµωτικότητα, 有効浸透圧, 高张

Printed books with definitions for tonicity

Click on a title to look inside that book (if available):

Google previewBack to Basics in Physiology (2013)

Fluids in the Renal and Cardiovascular Systems by Juan Pablo Arroyo, Adam J. Schweickert

Tonicity is the concentration of effective solutes. It is “effective osmolality.

Google previewThe Renal System Explained (2009)

An Illustrated Core Text by Sunita R Deshmukh, Newton W Wong

Tonicity is the effect of a solution on cell volume: • Isotonic solutions do not change the volume of a cell • Hypotonic solutions cause cells to swell • Hypertonic solutions...

Tonicity refers to the effect of the extracellular solution on cell volume 2.

Google previewe-Study Guide for: Biology : Concepts and Conn. Media Update by Neil A. Campbell, ISBN 9780321512444 (2012)

by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the twosolutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells ...

Google previewe-Study Guide for: Human Biology by Colleen Belk, ISBN 9780131481244 (2012)

by Cram101 Textbook Reviews

Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells immersed in ...

Google previewe-Study Guide for: Anatomy and Physiology by Frederic Martini, ISBN 9780805359473 (2012)

by Cram101 Textbook Reviews

Tonicity is a measure of the osmotic pressure (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells immersed in an ...

Google previewWildlife Search and Rescue (2011)

A Guide for First Responders by Rebecca Dmytryk

Tonicity refers to the amount of dissolved substances (electrolytes, sugars, others ) in a fluid. Hypotonic fluids have fewer dissolved substances than a typical animal's tissues, hypertonic fluids have more. Isotonic fluids have concentrations ...

Google previewe-Study Guide for Ganongs Review of Medical Physiology, 23rd Edition, textbook by Kim E. Barrett (2012)

Medicine, Human anatomy by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells immersed in ...

Google previewe-Study Guide for Biology, textbook by Sylvia Mader (2012)

Biology, Biology by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonlyused when describing the response of cells ...

Google previewe-Study Guide for: Biology: Concepts and Application by Cecie Starr, ISBN 9780495102564 (2012)

by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the twosolutions) oftwo solutions separated bya semipermeable membrane. Itis commonly used when describing the response of cells ...

Google previewe-Study Guide for: Chemistry and Chemical Reactivity (2013)

Chemistry, Chemistry by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure gradient ...

Google previewe-Study Guide for Biology: The Unity and Diversity of Life, textbook by Cecie Starr (2012)

Biology, Biology by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the twosolutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells ...

Google previewe-Study Guide for: Human Body in Health and Disease by Gary A. Thibodeau, ISBN 9780323031622 (2012)

by Cram101 Textbook Reviews

Tonicity is a measure of the osmotic pressure (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells immersed in an ...

Google previewe-Study Guide for: Neurological Rehabilitation by Darcy Ann Umphred, ISBN 9780323075862 (2014)

by Cram101 Textbook Reviews

Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells immersed in ...

Google previewe-Study Guide for: Anatomy and Physiology: From Science to Life by Gail W. Jenkins, ISBN 9780470227589 (2012)

by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells immersed in ...

Google previewe-Study Guide for: Maders Understanding Human Anatomy and Physiology (2014)

Biology, Human biology by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells immersed in ...

Google previewe-Study Guide for: Nutrition and Diet Therapy by Linda Kelly DeBruyne, ISBN 9780495387190 (2012)

by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure (as defined by the water potential of the two solutions) oftwo solution separatedby a semipermeable membrane. Itis commonlyused when describing the response of cells immersed in an ...

Google previewA Text book on chiropractic physiology (1916)

by Harry Edwin Vedder

Muscular tonicity is the condition in which all healthy muscles are found, and indicates a certain degree of contraction. These muscles are not contracted to such a degree that they are stretched, but enough that when they contract they will ...

Google previewe-Study Guide for Essentials of Pathophysiology: Concepts of Altered Health States, textbook by Carol Mattson Porth (2013)

Medicine, Internal medicine by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure oftheosmotic pressure gradient (as defined by the waterpotential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells ...

Google previewe-Study Guide for: Biology: The Unity and Diversity of Life by Cecie Starr, ISBN 9780495557920 (2013)

by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonlyused when describing the response of cells ...

Google previewe-Study Guide for Fundamentals of Anatomy and Physiology, textbook by Martini (2012)

by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the twosolutions) of two solutions separated bya semipermeable membrane.It is commonly used when describing the response ofcells ...

Google previewe-Study Guide for: Fundamentals of Applied Pathophysiology: An Essential Guide for Nursing and Healthcare Students (2013)

Medicine, Internal medicine by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure gradient (as defined bythe waterpotential of the twosolutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells ...

Google previewe-Study Guide for: Biology: Today and Tomorrow Without Physiology (2014)

Biology, Biology by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells ...

Google previewe-Study Guide for: Human Biology (2012)

by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly usedwhen describing the response of cells ...

Google previewe-Study Guide for: Mader's Understanding Human Anatomy & Physiology (2012)

by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure (as defined by the water potential of the two solutions) oftwo solutions separated by a semipermeable membrane. It is commonly used whendescribing the response of cells immersed in ...

Google previewPharmaceutics (2013)

The Science of Medicine Design by Philip Denton, Chris Rostron

Tonicity is a measure of the osmotic pressure gradient on either side of a semipermeable membrane, normally a cell membrane. This gradient may be negative, zero, or positive. Topical application A topical application is a medicine ...

Google previewe-Study Guide for: Biology : The Dynamic Science, Volume 1, Units 1 and 2 by Peter J. Russell, ISBN 9780495010319 (2012)

by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells ...

Google previewe-Study Guide for Anatomy & Physiology, textbook by Elaine Nicpon Marieb (2012)

Medicine, Human anatomy by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of the osmotic pressure (as defined by the water potential of the two solutions) oftwo solutions separated by a semipermeable membrane. It is commonly used whendescribing the response of cells immersed in ...

Google previewe-Study Guide for Anatomy & Physiology with Integrated Study Guide, textbook by Stanley Gunstream (2013)

Medicine, Internal medicine by Cram101 Textbook Reviews

Tonicity: Tonicity is a measure of theosmotic pressure gradient (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells ...

Online dictionaries and encyclopedias with entries for tonicity

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Video about tonicity

Tonicity Meaning

Video shows what tonicity means. The normal presence of tone or tension in a muscle or organ, tonus. The ability of a solution to exert an osmotic pressure upon ...

Scrabble value of T1O1N1I1C3I1T1Y4

The value of this 8-letter word is 13 points. It is included in the first and second editions of the Official Scrabble Players Dictionary.

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