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The inferior mesenteric artery (IMA) is a major branch of the abdominal aorta. It supplies arterial blood to the organs of the hindgut – the distal 1/3 of the transverse colon, splenic flexure, descending colon, sigmoid colon and rectum.
The inferior mesenteric artery arises from the abdominal aorta at the level of the third lumbar vertebra. It supplies the hindgut and has four major branches called left colic, sigmoid and superior rectal arteries. It also contributes to the formation of the marginal artery of Drummond.
In human anatomy, the inferior mesenteric artery (IMA) is the third main branch of the abdominal aorta and arises at the level of L3, supplying the large intestine from the distal transverse colon to the upper part of the anal canal.
The first branch of the inferior mesenteric artery is the left colic artery. The left colic artery supplies blood flow to the distal third of the transverse colon and the entirety of the descending colon. Once diverging from the IMA, the left colic artery runs anterior to the left ureter, left internal spermatic vessels (males), and psoas major ...
The inferior mesenteric artery (IMA) brings oxygen-rich blood to the large intestine, specifically to the upper region of the rectum and the left colic flexure, a bend at the intestine’s left...
The superior mesenteric artery branches from the abdominal aorta inferior to the celiac trunk and provides oxygenated blood to most of the small intestine and the proximal large intestine. It forms five major branches to provide blood flow to many feet of intestines.
The inferior mesenteric artery travels anteroinferiorly along the aorta, then deviates towards the left as it passes obliquely towards the pelvic brim. Along its course it gives off the left colic artery and two to five sigmoid arteries.
The inferior mesenteric artery (IMA) is one of the three non-paired major splanchnic arteries, in the abdominal cavity, arising from the abdominal aorta and supplying the hindgut. It is the smallest of the three anterior visceral branches of the abdominal aorta.
These rectal anastomoses can be of clinical importance when the external iliac artery is occluded and the collateral blood supply of the leg uses the inferior mesenteric, superior rectal, internal iliac, or femoral arteries.
The inferior mesenteric artery (IMA) is the predominant vessel of supply for the hindgut, the region from the distal transverse colon to the rectum (Fig. 1).