5. What are villi? What is their location and function?
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Villi are small finger-like projections located in the walls of the small intestine. Their function is to increase the surface area in order to maximise the absorption of digested food.
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Villi are located in the small intestine. The inner wall of the small intestine has thousands of finger-like outgrowths called villi. The villi increase the surface area for absorption of the digested food. Each villus has a network of thin and small blood capillaries. Which absorb nutritive components from digested food and supply to each cell of the body through blood.
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