Question

The cells of the small intestine have a special structure that helps in the absorption of food. This structure is ________

(a) villi

(b) pseudopodia

(c) flagella

(d) attachment sites

This question was addressed to me in a job interview.

My question is based upon Anatomy and Physiology of G.I.T. in section Gastroenterology of Clinical Science

Answer 1

Right answer is (a) villi

Easiest explanation: The inner lining of the intestines are lined with villi which help increase the surface area of absorption. These villi have blood and lymph supply and have microvilli which further increase the surface area for absorption.