n valve between the ileum of the small intestine and the cecum of the large intestine; prevents material from flowing back from the large to the small intestine
n an artery that originates from the superior mesenteric artery and supplies the terminal part of the ileum and the cecum and the vermiform appendix and the ascending colon
n surgical procedure that creates an opening from the ileum through the abdominal wall to function as an anus; performed in cases of cancer of the colon or ulcerative colitis