Dictionary » V » Venule



noun, plural: venules

(anatomy) A small vein, the smallest of the venous blood vessel that connects the capillaries to the large, systemic vein.

(entomology) One of the small branches of a vein in the wing of an insect.


Venules, as a blood vessel, functions as a passageway for blood returning from the capillaries to the vein (back to the heart).

Word origin: Latin vēnula, diminutive of vēna, vein.
Related forms: venular (adjective)

Also called: veinule or veinulet

Related terms:

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Filtration and Absorption

... to calculate the filtration pressure and absorption pressure for this? Answer given in book is: (at arteriole end) Filtration pressure=1.2kPa, (at venule end) Absorption pressure=1.5kPa http://img249.imageshack.us/img249/4236/filtrationandabsorption.jpg SP:Solute potentials of plasma ...

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by cloud5
Mon Jul 05, 2010 8:54 am
Forum: Physiology
Topic: Filtration and Absorption
Replies: 1
Views: 2996

The Best Biology Definitions

... past tense of see Sex ............... the number after 5 Tachycardia ............... a tacky sweater Taxis ............... several cabs Venule ............... place to hold an event http://bittersweetsentiment.com/track4.jpg

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by aliengeek
Thu Jan 08, 2009 7:47 pm
Forum: General Discussion
Topic: The Best Biology Definitions
Replies: 3
Views: 5095


... initially. But because little blood is pumped into the top arterioles of the lung the alveolar pressure is higher then that of the arteriole and venule, and thus vasoconstriction appears. This results in no oxygen uptake in the top of the lung.

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by sdekivit
Sat Apr 15, 2006 12:36 pm
Forum: Human Biology
Topic: lungs
Replies: 4
Views: 2052

Transport of carbon dioxide to the lungs

i learnt that carbon dioxide becomes carbonic acid and forms hydrogen carbonate ions in blood (at the venule end of the blood capillary). At the lungs, where the concentration of carbon dioxide is low, the reaction shifts back and carbon dioxide diffuses into the alveoli.

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by Navin
Wed Oct 26, 2005 1:24 pm
Forum: Human Biology
Topic: Transport of carbon dioxide to the lungs
Replies: 16
Views: 21437

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