ATI RN
20 Questions About The Digestive System With Answers Questions
Question 1 of 5
Which of the following parts of the alimentary canal bears villi?
Correct Answer: B
Rationale: The ileum, part of the small intestine, contains villi that increase the surface area for nutrient absorption.
Question 2 of 5
Which of the following choices leads to an elevation in stomach pH?
Correct Answer: C
Rationale: Suppression of parietal cells reduces HCl secretion, increasing stomach pH (making it less acidic).
Question 3 of 5
In a clinical research study on intestinal motility, a 24-year-old male graduate student is involved. The peristalsis of the small intestine:
Correct Answer: D
Rationale: Peristalsis involves circular muscle contraction behind the bolus and relaxation ahead, propelling it forward.
Question 4 of 5
What is the name of the cells that secrete hydrochloric acid into the stomach?
Correct Answer: C
Rationale: Parietal cells secrete hydrochloric acid (HCl) into the stomach to aid in digestion. Gastric pits are structures, not cells; chief cells secrete pepsinogen; enteroendocrine cells release hormones.
Question 5 of 5
What is the word to describe the breaking up of large fat droplets into smaller ones?
Correct Answer: D
Rationale: Emulsification is the process of breaking large fat droplets into smaller ones, typically by bile salts, to aid digestion.