What is the difference between villi and rugae?

Villi is present in the lining of intestine where as rugae is present in the stomach.

Villi help in expanding the surface of intestine for absorption whereas rugae helps in expanding the stomach to form more space for the food..

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simple!

villi are present in the intestine for absorption and rugae are present in stomach for effective churning and inncreasing digestive surface

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