Multiple choice

Which of the following is true regarding villi and microvilli In the small intestine?

  1. They increase the surface area for assimilation

  2. They decrease the surface area for assimilation

  3. They increase the surface area for absorption

  4. They decrease the surface area for absorption

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Villi and microvilli are structural adaptations of the small intestine that vastly increase the surface area available for the absorption of digested nutrients. Assimilation is the subsequent integration of these nutrients into body tissues, which occurs after absorption.