To increase the absorptive efficiency of the small intestine, the surface area of the mucosa is increased by the presence of folds in the wall called________ , and projections of the cell membrane
Called________.
A) microvilli : villi
B) lacteals : rugae
C) microvilli : lacteals
D) villi : microvilli
E) rugae : lacteals

Question

Quizplus · Accepted Answer

The small intestine increases its absorptive efficiency through the presence of villi, which are small, finger-like projections from the mucosa, and microvilli, which are even smaller projections from the cell membranes of cells on the villi. This combination greatly increases the surface area for absorption.

To Increase the Absorptive Efficiency of the Small Intestine, the Surface