Which structure contains the villi,microvilli,and brush border cells?
A)Stomach
B)Esophagus
C)Cecum
D)Duodenum

Question

Quizplus · Accepted Answer

The duodenum is the first part of the small intestine, where digestion and absorption of nutrients take place. It contains finger-like projections called villi, which increase the surface area for nutrient absorption. On the surface of these villi are even smaller projections called microvilli, which are covered in brush border cells. Together, these structures help to maximize nutrient absorption from food. The stomach (A) is responsible for mechanical and chemical digestion of food, the esophagus (B) is a muscular tube that moves food from the mouth to the stomach, and the cecum (C) is a pouch at the beginning of the large intestine. None of these structures contain the villi, microvilli, and brush border cells found in the duodenum.

Which Structure Contains the Villi,microvilli,and Brush Border Cells