Epithelial cells that line the small intestine have an adaptation to increase their surface area - what is the name of these structures? And why would the small intestine require a large surface area?
closed as off-topic by canadianer, AliceD♦, kmm, another 'Homo sapien', Tyto alba Feb 12 '17 at 14:26
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The small intestine requires a high surface area in order to increase the rate of absorption of digested food.