The absorptive effectiveness of the small intestine is enhanced by increasing the surface area of the mucosal lining. Which of the following accomplish this task?
A) plicae circulares, villi, and microvilli
B) the vast array of digestive enzymes
C) Brunner's glands and Peyer Patches
D) the rugae and haustra

Question

Quizplus · Accepted Answer

Plicae circulares, villi, and microvilli are all structural features of the small intestine that increase the surface area of the mucosal lining, allowing for more efficient absorption of nutrients. The other options listed (digestive enzymes, Brunner's glands and Peyer Patches, rugae and haustra) do not directly increase surface area for absorption.

The Absorptive Effectiveness of the Small Intestine Is Enhanced by Increasing