The small intestine is designed to absorb digested food is a correct statement. It consists of many folds which are called as villi. Each villus (singular)/ villi (plural) is surrounded by many epithelial cells. Each epithelial cell consists of many more microvilli. Villi and microvilli (part of villi) (Fig 4) together increase the surface area in the intestine which aids in the absorption of nutrients.
Fig 4 shows villi and microvilli in the small intestine
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