Which Structure Does Not Increase the Surface Area of the Lining

Question

Which structure does not increase the surface area of the lining of the small intestine?
A) microvilli
B) lacteals
C) villi
D) plicae

Accepted Answer

Lacteals are lymphatic vessels located in the center of each villus in the small intestine. They are not involved in increasing the surface area for absorption but rather in the absorption of dietary fats. Microvilli, villi, and plicae are all structures that increase the surface area of the small intestine to maximize absorption of nutrients.