ATI RN
Digestive System Multiple Choice Questions Questions
Question 1 of 5
Ito cells, all true except:
Correct Answer: D
Rationale: Ito (stellate) cells store vitamin A and contribute to fibrosis, but Kupffer cells, not Ito cells, are phagocytic.
Question 2 of 5
Chemical digestion of carbohydrates begins in the........... whereas chemical digestion of proteins begins in the...........
Correct Answer: D
Rationale: Carbohydrate digestion starts in the oral cavity with salivary amylase, while protein digestion begins in the stomach with pepsin.
Question 3 of 5
Which of the following is a common passage in swallowing food and breathing-
Correct Answer: A
Rationale: The pharynx serves as a common pathway for both food (to the esophagus) and air (to the larynx).
Question 4 of 5
Duodenum has characteristic Brunner's glands which secrete -
Correct Answer: D
Rationale: Brunner's glands secrete an alkaline mucus to neutralize acidic chyme from the stomach.
Question 5 of 5
In pancreas, pancreatic juice and hormone are secreted by-
Correct Answer: B
Rationale: Pancreatic juice (exocrine) is secreted by acinar cells, while hormones (endocrine) are secreted by Islets of Langerhans.