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what is villi?
Like the stomach,small intestine contains numerous ridges and furrows. In addition, there are numerous projections called villi that function to increase the surface area of the intestine. Individual villus cells have microvilli which greatly increase absorptive surface area.
The total absorptive surface area is equivalent to 500 or 600 square meters.Each villus contains blood vessels and a lacteal (lymph vessel).Peptidases and maltase are embedded within the plasma membrane of the microvilli.


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