Arterial Wall


In this high-power view of an arterial wall, the arrow marks the endothelium of the vessel,  Note that this is simple squamous epithelium, and is only one cell layer thick (the very thin, pale layer shown by the arrow).  The prominent internal elastic lamina, marked by the square box, is a darkly staining, undulating layer of fibers that gives elasticity to the artery.  Note that both of these layers make up the tunica interna (intima).

Separating the media ('M') from the tunica externa (adventitia - 'E'), is an external elastic lamina, marked in this photo by a circle.

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Dr. Sullivan's Departmental Page

Copyright 2001 Dennis Sullivan, MD - All RIGHTS RESERVED

Cedarville University, 251 N. Main Street, Cedarville, OH 45314, USA  1-800-CEDARVILLE

Last updated: July 10, 2001.