Medical Definition of Arteria rectalis superior
1.
Origin, inferior mesenteric; distribution, upper part of rectum; anastomoses, middle and inferior rectal. As a tributary of the portal vein, its anastomosis with these arteries forms a portosystemic or portocaval anastomosis.
Synonym: arteria rectalis superior, superior haemorrhoidal artery.
(05 Mar 2000)
Lexicographical Neighbors of Arteria Rectalis Superior
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