vessel supplies blood to Homo sapiens rectum descending colon sigmoid colon inferior mesenteric artery http://upload.wikimedia.org/wikipedia/commons/e/e4/Gray538.png https://cdn.humanatlas.io/digital-objects/ref-organ/blood-vasculature-female/v1.3/assets/3d-vh-f-blood-vasculature.glb https://cdn.humanatlas.io/digital-objects/ref-organ/blood-vasculature-male/v1.3/assets/3d-vh-m-blood-vasculature.glb inferior mesenteric arterial tree VHOG:0001116 Wikipedia:Inferior_mesenteric_artery GAID:501 EHDAA2:0000817 galen:InferiorMesentericArtery FMA:14750 UMLS:C0162860 MA:0002004 IMA arteria mesenterica inferior UBERON:0001183 EMAPA:18618 NCIT:C32780 MESH:D017537 Mesenteric artery that supplies the large intestine from the left colic (or splenic) flexure to the upper part of the rectum, which includes the descending colon, the sigmoid colon, and part of the rectum. Proximally, its territory of distribution overlaps (forms a watershed) with the middle colic artery, and therefore the superior mesenteric artery. The SMA and IMA anastomose via the marginal artery (artery of Drummond). The territory of distribution of the IMA is more or less equivalent to the embryonic hindgut. [WP,unvetted]. EHDAA:4345 SCTID:181341006 BTO:0002302 mesenteric artery rectal artery