middle rectal artery

(redirected from Middle rectal)

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.

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
References in periodicals archive ?
Rectosigmoid: perirectal, left colic, sigmoid mesenteric, sigmoidal, inferior mesenteric, superior rectal, middle rectal
Rectum: perirectal, sigmoid mesenteric, inferior mesenteric, lateral sacral, presacral, internal iliac, sacral promontory, superior rectal, middle rectal, inferior rectal
Perirectal lymph nodes include the mesorectal (paraproctal), lateral sacral, presacral, sacral promontory (Gerota), middle rectal (hemorrhoidal), and inferior rectal (hemorrhoidal) nodes.
A retrospective review of 22 patients who had superselective transcatheter microcoil embolization (STME) for a lower GI hemorrhage showed that 11 underwent embolizations in branches of the superior mesenteric artery, 9 had embolizations in branches of the inferior mesenteric artery, and 2 received catheterization through the internal iliac artery with embolization of the middle rectal artery.
Rectosigmoid--perirectal, left colic, sigmoid mesenteric, sigmoidal, inferior mesenteric, superior rectal, middle rectal
Rectum--perirectal, sigmoid mesenteric, inferior mesenteric, lateral sacral, presacral, internal iliac, sacral promontory, superior rectal, middle rectal inferior rectal