Amylase is an example of a(n)

What provides the luminal surface of the intestinal wall its characteristics?

Rationale: The luminal surface is smooth and slippery due to mucus secreted by goblet cells in the mucosa, not the peritoneum, which is external.

Absorption of digested food chiefly occurs in-

Rationale: The small intestine is the main site for nutrient absorption.

The small intestine is held to the posterior abdominal wall by the:

Rationale: The mesentery supports and anchors the small intestine to the posterior abdominal wall.

Brunner's glands are located in :

Rationale: Brunner's glands are specifically found in the duodenum.

Match each term with the correct description: produces enzymes

Rationale: The pancreas produces digestive enzymes that aid in breaking down food.

Digestive System Practice Questions