ATI RN
Digestive System Practice Questions Questions
Question 1 of 5
What happens during the gastric phase of digestion?
Correct Answer: B
Rationale: The gastric phase involves the stomach churning food with gastric secretions (e.g., HCl, pepsin) to form chyme.
Question 2 of 5
Concerning Circumvallate papilla the following is true EXCEPT:
Correct Answer: A
Rationale: Circumvallate papillae are the least numerous (about 8-12 in humans), not the most numerous, and they carry many taste buds with Von Ebner's glands.
Question 3 of 5
(Auerbach's) plexus found in:
Correct Answer: A
Rationale: Auerbach's plexus is located between the circular and longitudinal layers of the muscularis externa, controlling gut motility.
Question 4 of 5
In case of atrophic gastritis, deficiency in vitamin B12 result from damage of:
Correct Answer: C
Rationale: Parietal cells secrete intrinsic factor, necessary for vitamin B12 absorption; their damage in atrophic gastritis leads to B12 deficiency.
Question 5 of 5
Enteroendocrine cells of stomach, show the following EXCEPT:
Correct Answer: B
Rationale: Enteroendocrine cells have basal secretory granules, not apical, as they release hormones into the bloodstream.