Primary organ of bowel elimination
Extends from the ileocecal valve to the anus
Functions
Completion of absorption of H2O, Nutrients (chyme from sm. intest. - 1-1.5 L)
Manufacture of some vitamins
Formation of feces
Expulsion of feces from the body
The Small and Large Intestines
Process of Peristalsis
Peristalsis is under control of nervous system
Contractions occur every 3 to 12 minutes
Mass peristalsis sweeps occur 1 to 4 times each 24-hour period
One-third to one-half of food waste is excreted in stool within 24 hours
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