Plicae and intestinal villi ? carry products of digestion that will not pass through the walls of blood capillaries. ? produce new cells for the mucosa of the small intestine. ? increase the surface area of the mucosa of the small intestine. ? secrete digestive enzymes. ? produce hormones.
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Step 1: Plicae and intestinal villi are finger-like projections that increase the surface area of the small intestine. Show more…
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