zona hemorrhoidalis

Medical Dictionary

zona hemorrhoidalis zona hem·or·rhoi·da·lis (hěm'ə-roi-dā'lĭs)
n.
The part of the anal canal that contains the rectal venous plexus. Also called annulus hemorrhoidalis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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