small intestine has many villi on its inner lining. how it's helpful?
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The intestinal villi are much smaller than any of the circular folds in the intestine. Villi increase the internal surface area of the intestinal walls making available a greater surface area for absorption. ... The villi are connected to the blood vessels so the circulating blood then carries these nutrients away.
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The inner surface of the mucosa has many finger-like projections called villi. The villi increase the surface area of the small intestine, which helps it absorb digested food.
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