Description
Arterial supply to the large intestine arises from the branches of the superior mesenteric artery (the ileocolic, right colic, and middle colic arteries) which supply the cecum, ascending colon, and proximal two thirds of the transverse colon.
The inferior mesenteric artery supplies the remainder of the transverse colon, descending colon, and sigmoid colon. It also provides the primary vasculature supply for the upper two thirds of the rectum. Its branches are the left colic, sigmoid, and superior rectal arteries.
