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Medical Term:

middle rectal artery


origin, internal iliac; distribution, middle portion of rectum; anastomoses, inferior rectal and superior rectal. Because the latter is a tributary of the portal system, this is a portosystemic or portocaval anastomosis.

Synonym(s): arteria rectalis mediaTA, middle hemorrhoidal artery

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.