Rugae are submucosal folds or ridges in the stomach. They allow the stomach to expand and contract in order to accommodate different amounts of food and aid in the mechanical breakdown of food. They are not involved in absorption, contain secretory cells, located in the esophagus, or where proteins are digested.

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Rugae Are

Question 50

Multiple Choice

Rugae are

A) submucosal ridges in the stomach.
B) involved in absorption of liquids from the stomach.
C) pockets in the lining of the stomach that contain secretory cells.
D) located in the esophagus.
E) areas where proteins are digested.

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