How is the small intestine designed to absorb digested food?
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The mucosa of the small intestine is lined by simple columnar epithelium which has absorptive cells embedded in it. The absorptive cells or enterocytes help in absorption for nutrients and minerals from food in the small intestine.
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The small intestine is the longest organ of the digestive tract. The small intestine has millions of tiny finger-like projections called villi. These villi increase the surface area for more efficient food absorption. Within these villi, many blood vessels are present that absorb the digested food and carry it to the bloodstream. From the bloodstream, the absorbed food is delivered to each and every cell of the body.
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