middle rectal artery


mid·dle rec·tal ar·ter·y

[TA] 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 media [TA], middle hemorrhoidal artery

mid·dle rec·tal ar·te·ry

(mid'ĕl rek'tăl ahr'tĕr-ē) [TA] Origin, internal iliac; distribution, middle portion of rectum; anastomoses, inferior rectal and superior rectal.
Synonym(s): arteria rectalis media, middle hemorrhoidal artery.

middle rectal artery

A branch of the internal iliac artery or the inferior vesical artery; it supplies blood to the lower rectum and upper anal canal.See also: artery