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

Question

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

Accepted Answer

The duodenum is the first part of the small intestine and is where the majority of nutrient absorption occurs. It contains villi, which increase surface area for absorption, microvilli, which further increase surface area, and brush border cells, which produce enzymes that aid in digestion. The stomach, esophagus, and cecum do not contain these structures.