What are the vessels pertaining to ileum and colon?

The ileum and colon are supplied by branches of the superior mesenteric artery and drained by branches of the superior mesenteric vein.

Arteries:

- Ileocolic artery:

- Gives rise to the posterior cecal artery, anterior cecal artery, and ileocolic branch.

- Right colic artery: Supplies the ascending colon and the proximal two-thirds of the transverse colon.

- Middle colic artery: Supplies the distal third of the transverse colon.

- Left colic artery: Goes down lateral to the descending colon and supplies the descending and sigmoid colon.

Veins:

- Ileocolic vein: Drains blood from the ileocolic junction and joins with the superior mesenteric vein.

- Right colic vein: Drains blood from the right colic flexure and the ascending colon.

- Middle colic vein: Drains blood from the transverse colon and right colic flexure.

- Left colic vein: Drains the blood from the left colic flexure, descending, and sigmoid colon.