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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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.