RT Book, Section A1 Ellison, E. Christopher A1 Zollinger, Robert M. SR Print(0) ID 1127272602 T1 SURGICAL ANATOMY OF LARGE INTESTINE T2 Zollinger's Atlas of Surgical Operations, 10e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 978-0-07-179755-9 LK accesssurgery.mhmedical.com/content.aspx?aid=1127272602 RD 2024/03/28 AB Several important anatomic facts influence the technique of surgery in the large intestine. As a consequence of its embryologic development, the colon has two main sources of blood supply. The cecum, ascending colon, and proximal portion of the transverse colon are supplied with blood from the superior mesenteric artery, while the distal transverse colon, splenic flexure, descending colon, sigmoid, and upper rectum are supplied by branches of the inferior mesenteric artery (see figure 1).