NUTR 221 Lecture 15: Nut lecture 15
Document Summary
Frames the small intestine on 3 sides extends from ileocecal valve to anus. 3-5 feet long depending on height of person, larger diameter than small intestine. Function: absorb water from indigestible food residues 2) eliminates indigestible food as feces. Sub-divisions: cecum, appendix, colon, rectum, anal canal cecum, lies below the iliocecal valve (1st part of large intestine) Vermiform appendix contains a mass of lymphoid tissue (immunity) prone to bacteria accumulation. Prone to bacterial accumulation!basically a small extension off of cecum, serves as a reservoir for bacteria and can get infection/blockage: blockage can trap bacteria causing in ammation. Added: research paper on association between appendectomy and colostridium dif cile infection methods: 257 patients, c. dif cile testing, questionnaires, 2012. Results: 136 tested positive, (19. 9% reported previous appendectomies- removed appendix) Ascending colon: transverse colon: descending colon: sigmoid colon: Rectal valves travels superior on right side forms a right angle from ascending colon, travels to left side travels inferior on left side.
