arteriole

arteriole /ar·te·ri·ole/ (ahr-tēr´e-ōl) a minute arterial branch.arterio´lar

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afferent glomerular arteriole  a branch of an interlobular artery that goes to a renal glomerulus.

efferent glomerular arteriole  one arising from a renal glomerulus, breaking up into capillaries to supply renal tubules.

postglomerular arteriole  efferent glomerular a.

precapillary arteriole  arterial capillary.

preglomerular arteriole  afferent glomerular a.

straight arterioles of kidney  branches of the arcuate arteries of the kidney arising from the efferent glomerular arterioles and passing down to the renal pyramids.

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ar·te·ri·ole (är-tîr-l)

n.

A minute artery, especially a terminal artery continuous with the capillary network.

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ar·teri·olar (-lr, --lr) adj.

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Arteriole

The smallest type of artery.

Mentioned in: Raynaud's Disease

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arteriole

[ärtir′ē·ōl]

Etymology: L, arteriola, little artery

the smallest of the arteries. Blood flowing from the heart is pumped through the arteries, to the arterioles, to the capillaries, into the veins, and returned to the heart. The muscular walls of the arterioles constrict and dilate in response to both local factors and neurochemical stimuli; thus, arterioles play a significant role in peripheral vascular resistance and in regulation of blood pressure. Also called arteriola. See also artery. arteriolar, adj.

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arteriole (ärtir´ēōl),

n a smaller arterial branch off an artery and connecting to a capillary.

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arteriole

a minute arterial branch.

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afferent arteriole

enters the glomerulus at the vascular pole and divides into capillaries which subsequently merge to form efferent arterioles.

efferent arteriole

derived from the glomerular capillaries in the renal glomeruli, these arterioles exit from the glomerulus at its vascular pole.

straight arteriole

see arteriola rectae renis.

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arteriole

Anatomy A teeny weeny artery that connects arteries with capillaries