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Large Intestine - Anatomy & Physiology (view source)
Revision as of 11:31, 15 July 2008
, 11:31, 15 July 2008→Function
==Function==
==Function==
'''Water Absorption'''
*Chyme entering the large intestine is semisolid. By the time chyme leaves the large intestine as faeces it should be solid because most of the remaining water is absorbed.
**Water absorption is achieved by the generation of an osmotic gradient between the gut lumen and the enterocytes. Sodium is transported into the enterocytes by active transport and is followed by chloride ions by passive movement.
'''Vitamin Absorption'''
*The large intestine is colonised by a large quantity of bacteria that produce vitamins as a consequence of their own metabolism. The large intestine absorbs these vitamins, in addition to vitamins present in the diet.
==Vasculature==
==Vasculature==