inferior mesenteric artery

(redirected from Mesenteric artery, inferior)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to Mesenteric artery, inferior: common iliac artery, internal carotid artery, internal iliac artery, renal artery, splenic artery, Left colic artery

in·fe·ri·or mes·en·ter·ic ar·ter·y

[TA]
origin, at the L3 vertebral level as the third and smallest anterior visceral branch of the abdominal aorta; branches, left colic, sigmoid, superior rectal; anastomoses, middle colic and middle rectal.

inferior mesenteric artery

a visceral branch of the abdominal aorta, arising just above the division into the common iliacs and supplying the left half of the transverse colon, all of the descending and iliac colons, and most of the rectum. It has left colic, sigmoid, and superior rectal branches.
enlarge picture
Inferior mesenteric artery

in·fe·ri·or mes·en·ter·ic ar·te·ry

(in-fēr'ē-ŏr mez'en-ter'ik ahr'tĕr-ē) [TA]
Origin, abdominal aorta; branches, left colic, sigmoid, superior rectal; anastomoses, middle colic and middle rectal.
Synonym(s): arteria mesenterica inferior.

inferior mesenteric artery

The third unpaired midline artery that branches from the abdominal aorta; it originates 3 to 4 cm proximal to the aortic bifurcation. It supplies blood to the hindgut, i.e., the distal half of the transverse colon, the descending colon, the sigmoid colon, and the rectum. Its branches include the left colic, sigmoid, and superior rectal arteries.
See: aorta (Branches of aorta), circulation (Circulation of blood through heart and major vessels) for illus.
See also: artery