superior rectal arterymedical dictionary

<artery>

<anatomy> 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.

Synonyms: arteria rectalis superior, superior haemorrhoidal artery.

(05 Mar 2000)