Intima

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intima

[′in·tə·mə]
(histology)
The innermost coat of a blood vessel. Also known as tunica intima.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Intima

 

(tunica intima vasorum), the inner coat of the blood vessels (except the capillaries).

The intima consists of a layer of endothelium, a layer of loose connective tissue underneath, and an inner elastic membrane that separates the intima from the tunica media. The intima forms pocketlike valves in the veins, permitting the blood in the vessels to flow in only one direction.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.