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Encyclopedia > Venule

A venule is a small blood vessel that allows deoxygenated blood to return from the capillary beds to the larger blood vessels called veins. Venules have three layers: An inner endothelium composed of squamous epithelial cells that act as a membrane, a middle layer of muscle and elastic tissue and an outer layer of fibrous connective tissue. The middle layer is poorly developed so that venules have thinner walls than arterioles. Image File history File links Illu_capillary. ... Image File history File links Illu_capillary. ... The arterial system The blood vessels are part of the circulatory system and function to transport blood throughout the body. ... Human blood smear: a - erythrocytes; b - neutrophil; c - eosinophil; d - lymphocyte. ... The word capillary is used to describe any very narrow tube or channel through which a fluid can pass. ... In the circulatory system, a vein is a blood vessel that carries blood toward the heart. ... The endothelium is the layer of thin, flat cells that lines the interior surface of blood vessels, forming an interface between circulating blood in the lumen and the rest of the vessel wall. ... A biological membrane or biomembrane is an enclosing or separating tissue which acts as a barrier within or around a cell. ... ... An arteriole is a blood vessel that extends and branchs out from an artery and leads to capillaries. ...


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  • MeSH A07.231.432.952

  Results from FactBites:
 
Influence of arteriovenular pairing on PAF-induced capillary filtration -- Harris et al. 276 (1): H107 -- AJP - Heart ... (5002 words)
Arterioles and venules are often paired in a parallel countercurrent arrangement.
venule); and 2) the relative increase in capillary J
Mediator transfer from venule to arteriole may be highest when initiated from the 25- to 35-µm-diameter venules, which have a higher density of adherent leukocytes [white blood cells (WBC)].
Venule - Wikipedia, the free encyclopedia (119 words)
A venule is a small blood vessel that allows blood to return from the capillary beds to the larger blood vessels called veins.
Venules have three layers: An inner endothelium composed of squamous epithelial cells that act as a membrane, a middle layer of muscle and elastic tissue, and an outer layer of fibrous connective tissue.
The middle layer is poorly developed so that venules have thinner walls than arterioles.
  More results at FactBites »

 
 

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