Which of the following increases the surface area of the individual simple columnar epithelial cells?
A) Circular folds
B) Villi
C) Microvilli
D) All of these are correct

Question

Quizplus · Accepted Answer

Microvilli increase the surface area of individual simple columnar epithelial cells. Circular folds and villi are folding patterns of the mucosa and submucosa layers in the small intestine that increase the overall surface area of the organ. However, they do not directly increase the surface area of individual cells. Therefore, choice C is the only correct answer.

Which of the Following Increases the Surface Area of the Individual