Colon

The colon is the last part of the digestive system; it extracts water and salt from solid wastes before they are eliminated from the body, and is the site in which flora-aided (largely bacterial) fermentation of unabsorbed material occurs.  Unlike the small intestine, the colon does not play a major role in absorption of foods and nutrients.  However, the colon does absorb water, sodium and some fat soluble vitamins.(adapted from Wikipedia)

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