Unformatted text preview: c. descending colon - on left side d. sigmoid colon - terminates at rectum (~S3) 3. rectum- terminal eight inches of GI tract 4. anus- opening to outside a. internal sphincter - smooth musc. (involuntary) b. external sphincter - skeletal musc. (voluntary) B. Histology 1. mucosa a. NO villi or circular folds b. simple columnar epithelium and goblet cells 2. submucosa- similar to rest of GI 3. muscularis a. external layer - longitudinal smooth muscle b. internal layer - circular smooth muscle C. Function - water resorption/ electrolyte balance...
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This note was uploaded on 01/29/2012 for the course SCIE SYG2000 taught by Professor Bernhardt during the Fall '10 term at Broward College.
- Fall '10