ileocolic artery ileocolic artery the ileocolic artery is the lowest branch arising from the concavity of the superior mesenteric artery. it supplies the cecum, ileum, and appendix. ileocolic arteryarteries of cecum and vermiform process. (terminal part of ileocolic labeled at upper right.)the superior mesenteric artery and its branches. (ileocolic artery not labeled, but visible at bottom left.)detailssourcesuperior mesenteric arterybranchesappendicular arteryanterior cecal arteryposterior cecal arteryveinileocolic veinidentifierslatinarteria ileocolicata98a12.2.12.059ta24258fma14815anatomical terminology it passes downward and to the right behind the peritoneum toward the right iliac fossa, where it divides into a superior and an inferior branch: the inferior gives rise to the appendicular artery and anastomoses with the end of the superior mesenteric artery; the superior branch anastomoses with the right colic artery. anatomy branches the inferior branch of the ileocolic runs toward the upper border of the ileocolic junction and produces the following branches: colic branch of ileocolic artery, which passes upward on the ascending colon - from the posterior branch of the inferior branch of the ileocolic artery ileocecal (some sources acknowledge this division while others do not) anterior cecal artery and posterior cecal artery, which are distributed to the front and back of the cecum ileal branch of ileocolic artery, which runs upward and to the left on the lower part of the ileum and anastomoses with the termination of the superior mesenteric artery an appendicular artery additional images superior ileocecal fossa. colonic blood supply