The mucosa layer of the small intestine is folded into what that projects into the lumen to increase absorption? A. Villi B. Lumen C. Muscularis D. Secretory glands
Question
The mucosa layer of the small intestine is folded into what that projects into the lumen to increase absorption? A. Villi B. Lumen C. Muscularis D. Secretory glands
Solution
The mucosa layer of the small intestine is folded into A. Villi that project into the lumen to increase absorption. Villi are small, finger-like projections that extend into the lumen of the small intestine. They increase the internal surface area of the intestinal walls making available a greater surface area for absorption.
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