The brush border lining of the small intestine is derived from ____.
A)rugae
B)villi
C)microvilli
D)autonomic nerves
E)circular smooth muscle

Question

The brush border lining of the small intestine is derived from ____. ​
A)rugae
B)villi
C)microvilli
D)autonomic nerves
E)circular smooth muscle

Quizplus · Accepted Answer

The brush border lining of the small intestine is composed of microvilli, which increase the surface area of the small intestine for absorption of nutrients. Rugae are folds in the stomach lining, villi are finger-like projections on the surface of the small intestine, autonomic nerves innervate the smooth muscle layers of the intestine, and circular smooth muscle contributes to the contractions of the small intestine to move food along the digestive tract.

The Brush Border Lining of the Small Intestine Is Derived