ATI LPN
Gastrointestinal System Questions and Answers Questions
Question 1 of 5
Which statement is INCORRECT about Histamine-receptor blockers?
Correct Answer: A
Rationale: H2 blockers reduce HCl from parietal cells, not chief cells (A is incorrect). B and C are true, so A is the incorrect statement.
Question 2 of 5
Lamina propria differs from dermis by having:
Correct Answer: C
Rationale: Lamina propria has more lymphocytes for mucosal immunity, while dermis has denser collagen and more adipocytes.
Question 3 of 5
For an organ lying within a body cavity, the tissue which forms the deepest layer (i.e., farthest from the inner core or lumen of the organ) is called the:
Correct Answer: B
Rationale: The serosa, a mesothelial layer, covers organs within body cavities like the peritoneal cavity.
Question 4 of 5
The epithelium lining tonsillar crypts may be obscured by numerous cells migrating through it. These cells are:
Correct Answer: B
Rationale: Lymphocytes migrate through tonsillar epithelium as part of immune surveillance.
Question 5 of 5
Folds in the mucosa of the stomach are called:
Correct Answer: A
Rationale: Rugae are temporary mucosal folds in the stomach for expansion.