Circular folds are
A) ridges in the wall of the stomach.
B) pleats in the lining of the small intestine.
C) fingerlike projections on the surface of the mucosa of the small intestine.
D) sacculations in the colon.
E) abnormal structures formed by excessive pressure in the small intestine.

Question

Quizplus · Accepted Answer

Circular folds, also known as plicae circulares, are pleats in the lining of the small intestine. They are permanent folds in the mucosa and submucosa layers that increase the surface area for better absorption of nutrients.

Circular Folds Are