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Ileocolic Artery
Cardiovascular System

Ileocolic Artery

Arteria ileocolica

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Quick Facts

Origin: Superior mesenteric artery.

Course: Emerges near the distal end of the superior mesenteric artery, from its right side.

Branches: Ileal and colic branches.

Supplied Structures: Distal ileum, appendix, cecum, and inferior portion of ascending colon.

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The ileocolic artery is the most distal of a series of three “colic” arteries that emerge from the right side of the superior mesenteric artery, near the root of the mesentery.


The ileocolic artery descends within the mesentery towards the ileocecal junction.


The ileocecal artery terminates by bifurcating into ileal and colic branches.

Supplied Structures

The ileal branch supplies the ileocecal junction, appendix, cecum, and portion of ascending colon adjacent to the cecum. It anastomoses with the distal-most ileal artery. The colic branch supplies the inferior portion of the ascending colon. It anastomoses with the right colic artery. The profuse anastomoses between the ileocolic artery and neighboring arteries provide rich collateral circulation to the small and large intestine making it quite resistant to ischemia.

Learn more about this topic from other Elsevier products

Ileocolic Artery

ScienceDirect image

The ileocolic artery, a branch of the cranial mesenteric artery, supplies the ileum, cecum, and ascending and transverse colon.

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