ZOO 3733C Study Guide - Midterm Guide: Appendicitis, Lobes Of Liver, Tropical Sprue
Document Summary
Origin of the superior mesenteric artery from the abdominal aorta. Sphincter of oddi in the second part of the duodenum of the small intestine and duodenojejunal flexure. The transpyloric plane is drawn at the level of l1. Below the umbilicus lies the arcuate line which is the location of termination of the posterior rectus sheath. Below this line, because the posterior layer of the rectus sheath is nonexistent, the rectus abdominis and transversus abdominis muscles are in direct contact with the tra(cid:374)s(cid:448)ersalis fas(cid:272)ia. Colle"s fas(cid:272)ia emerges from subcutaneous tissue of the perineal membrane. The medial border is the rectus abdominis muscle, the superior border are the inferior epigastric vessels, and the inferior border is the inguinal ligament. The greater omentum of the abdomen because it prevents adhesions along the peritoneal surface to limit the spread of infection. Congenital megacolon; megacolon that occurs when part or all of the large intestine have no ganglion cells and therefore cannot function.
