mesenteric artery

n.

1. An artery with its origin in the aorta, with branches to the left colic, sigmoid, and superior rectal arteries; inferior mesenteric artery.
2. An artery with its origin in the aorta, with branches to the inferior pancreaticoduodenal, jejunal, ileal, ileocolic, appendicular, right colic, and middle colic arteries; superior mesenteric artery.