arteriole


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Related to arteriole: arteriosclerosis

arteriole

 [ahr-te´re-ōl]
a minute arterial branch. adj., adj arterio´lar.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ar·te·ri·ole

(ar-tēr'ē-ōl), [TA]
A minute artery with a tunica media comprising only one or two layers of smooth muscle cells; a terminal artery continuous with the capillary network.
Synonym(s): arteriola [TA]
Farlex Partner Medical Dictionary © Farlex 2012

arteriole

(är-tîr′ē-ōl′)
n.
One of the small terminal branches of an artery, especially one that connects with a capillary.

ar·te′ri·o′lar (-ō′lər, -ə-lər) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

arteriole

Anatomy A teeny weeny artery that connects arteries with capillaries
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

ar·te·ri·ole

(ahr-tēr'ē-ōl) [TA]
A minute artery with a tunica media comprising only one or two layers of smooth muscle cells; a terminal artery continuous with the capillary network.
Synonym(s): arteriola [TA] .
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

arteriole

A small terminal branch of an artery, intermediate in size between an artery and a CAPILLARY.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
Arterioleclick for a larger image
Fig. 48 Arteriole . Arterioles, capillaries and venules.

arteriole

any of the narrow, thin-walled arteries that carry oxygenated blood to the tissues from the heart, forming part of the BLOOD CIRCULATORY SYSTEM. Arterioles progressively get smaller as they approach the target tissue, giving offside branches which become capillaries. Some arterioles connect up directly to VENULES via SHUNT VESSELS, particularly in tissues with a constant blood supply such as the skin.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Arteriole

The smallest type of artery.
Mentioned in: Raynaud's Disease
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

ar·te·ri·ole

(ahr-tēr'ē-ōl) [TA]
A minute artery with a tunica media comprising only one or two layers of smooth muscle cells; a terminal artery continuous with the capillary network.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Spironolactone has a separate antihypertensive effect: it prevents aldosterone-induced vasoconstriction in the arterioles, reducing resistance to blood flow.
(23), who showed increased MWT of the pulmonary arterioles in ventilated groups compared to non-ventilated groups.
One-Way ANOVA helped identify significant differences in renal arteriole diameter across the six groups (p<0.001).
We also found that PPAR[gamma] expression decreased in the coronary arteriole. Moreover, our results showed that homocysteine could lead to disturbances of lipid and glucose metabolism, impaired oxidative stress, and endothelium dysfunction.
Retinal arterioles that become permanently occluded typically have a silver wire appearance.
Conversion factors ((a) arteriole, (b) venule) were extracted from the respective linear expressions, which allow the BFV to be converted between the FOVs.
The virtual [Er.sub.2][O.sub.3] vascular "cast" (Figures 5(a) and 5(b)) showed complete perfusion from the abdominal aorta (i.e., the main feeding vessel) down to the 6th and 7th arterial branches (i.e., glomeruli afferent arterioles).
Kidney sections from control and hyperuricemic rats were stained with a-smooth muscle actin (aSMA), a marker for vascular smooth muscle cells (VSMC) to evaluate vascular hypertrophy at the levels of afferent arterioles and arcuate arteries.
Significant dilation of the vessels peaked after 60 min and effects lasted for a total of 90 min on the arterioles (p < 0.05).
Other mechanisms of Amphotericin B induced nephrotoxicity suggested in the literature are direct toxic effects to the afferent arterioles and tubules and direct renal and systemic vasoconstriction.
Results: Diabetes caused significant histomorphological changes in arteriole of kidneys of Experimental Group B compared to Control Group A (pgreater than 0.05), but these changes were prevented in Group C.
Although the general arrangement of blood vessels in both circulations is from arteries to capillaries to veins, in some parts of the systemic circulation it is modified so that a vein or an arteriole is interposed between two capillary networks; these vessels constitute portal systems.