capillary

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capillary

capillary (kăpˈəlĕrˌē), microscopic blood vessel, smallest unit of the circulatory system. Capillaries form a network of tiny tubes throughout the body, connecting arterioles (smallest arteries) and venules (smallest veins). Through the thin capillary walls, which are composed of a single layer of cells, the nutritive material and oxygen in the blood pass into the body tissues, and waste matter and carbon dioxide in turn are absorbed from the tissues into the bloodstream.
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capillary

[′kap·ə‚ler·ē]
(anatomy)
The smallest vessel of both the circulatory and lymphatic systems; the walls are composed of a single cell layer.
(geology)
A fissure or a crack in a formation which provides a route for flow of water or hydrocarbons.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

capillary

1. (of tubes) having a fine bore
2. Anatomy of or relating to any of the delicate thin-walled blood vessels that form an interconnecting network between the arterioles and the venules
3. Physics of or relating to capillarity
4. Anatomy any of the capillary blood vessels
5. a fine hole or narrow passage in any substance
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Normal blood capillary with intact endothelium and clear nucleus with a normal distribution of its chromatin content and well preserved mitochondrial integrity (preserved cristae, normal size, and shape), nucleus chromatin arrangement and striated pattern of clear bands (Z and H) in comparison to the MI group were also noticed.
More younger people are having heart attacks today and they are unlike older patients whose blood capillary system has built "side-roads" over a period of time, said Dr.
Crodarom Blue Lotus PG contains bioflavonoids, which are known for their antioxidant activity, anti-inflammatory properties and ability to improve blood capillary strength.
This filtration occurs in more than 1 million nephrons, each of which contains a blood capillary (the glomerulus) intertwined with a urine-collecting tubule.