Medical Definition of Middle haemorrhoidal artery
1.
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: arteria rectalis media, middle haemorrhoidal artery.
(05 Mar 2000)
Lexicographical Neighbors of Middle Haemorrhoidal Artery
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