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ATI LPN · Anatomy and Physiology · Digestive System Practice Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Amylase is an example of a(n)

A. accessory organ

B. carbohydrate

C. enzyme

D. vitamin

Expert Explanatory Rationale

Correct Answer: enzyme

Question 2 of 5

Match each term with the correct description: produces enzymes

A. rectum

B. esophagus

C. pancreas

D. liver

Expert Explanatory Rationale

Correct Answer: pancreas

Question 3 of 5

An important function of the intestinal villi is to:

A. increase the surface area for absorption of nutrients

B. move chyme along the alimentary canal

C. form a protective covering for the alimentary canal

D. synthesise amino acids

Expert Explanatory Rationale

Correct Answer: increase the surface area for absorption of nutrients

Question 4 of 5

Which of the following hormones is responsible for stimulating gallbladder contraction and the release of bile into the small intestine during the intestinal phase of digestion?

A. Cholecystokinin (CCK)

B. Secretin

C. Gastrin

D. Glucagon

Expert Explanatory Rationale

Correct Answer: Cholecystokinin (CCK)

Question 5 of 5

Which features make a villus well adapted for absorbing amino acids from the ileum?

A. large surface area, thin walls, lacteal

B. large surface area: volume ratio, good blood supply, thin walls

C. small surface area, good blood supply, lacteal

D. small surface area: volume ratio, good blood supply, thin walls

Expert Explanatory Rationale

Correct Answer: large surface area: volume ratio, good blood supply, thin walls

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