superior mesenteric artery


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Related to superior mesenteric artery: hepatic artery, celiac trunk, abdominal aorta, splenic artery

su·pe·ri·or mes·en·ter·ic ar·ter·y

[TA]
origin, at the L1 vertebral level as the second anterior visceral branch of the abdominal aorta; branches, inferior pancreaticoduodenal, jejunal, ileal, ileocolic, appendicular, right colic, middle colic; anastomoses, superior pancreaticoduodenal and left colic.

superior mesenteric artery

a visceral branch of the abdominal aorta, arising inferior to the celiac artery, dividing into five branches, and supplying most of the small intestine and parts of the colon. The branches are the inferior pancreaticoduodenal, intestinal, ileocolic, right colic, and middle colic.

su·pe·ri·or mes·en·ter·ic ar·te·ry

(sŭ-pēr'ē-ŏr mez'en-ter'ik ahr'tĕr-ē) [TA]
Origin, abdominal aorta; branches, inferior pancreaticoduodenal, jejunal, ileal, ileocolic, appendicular, right colic, middle colic; anastomoses, superior pancreaticoduodenal and left colic.
Synonym(s): arteria mesenterica superior.

superior mesenteric artery

Abbreviation: SMA
The second unpaired midline artery branching from the abdominal aorta; it originates 1 to 2 cm distal to the celiac artery. It supplies blood to the midgut, i.e., the distal half of the duodenum, the jejunum, the ileum, the ascending colon, and the proximal half of the transverse colon. Its branches include the inferior pancreaticoduodenal, jejunal, ileal, ileocolic, marginal, and right and middle colic arteries.
See: aorta (Branches of aorta)and circulation (Circulation of blood through heart and major vessels) for illus.
See also: artery
References in periodicals archive ?
Superior mesenteric artery syndrome in an infant: case report and literature review.
Considerations in the management of aneurysm of the superior mesenteric artery.
Stenosis of superior mesenteric artery is usually associated with chronic mesenteric ischaemia and was seen in 17 out of 22 patients (77%).
The duodenojejunal loop did not cross the midline and the caecocolic loop was found in the left upper quadrant, peritoneal bands were obstructing the duodenum, and adhesions surrounded the superior mesenteric artery (SMA).
However, some studies have also observed that aging is associated with blunted NO-mediated relaxations, such as in the second and the third branch of the superior mesenteric artery (Matz et al.
The mass enhanced avidly and heterogeneously, with arterial supply from the superior mesenteric artery.
The condition can also involve other large arteries including the superior mesenteric artery, and carotid, subclavian and iliac arteries.
Renal/visceral angioplasty referred to balloon dilatation of major abdominal arteries emanating from the aorta, such as the celiac axis, superior mesenteric artery, inferior mesenteric artery, and renal arteries.
Arteries arising from other sources like celiac trunk, superior mesenteric artery or common iliac arteries are called aberrant renal arteries.

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