ATI LPN
Gastrointestinal System Questions and Answers Questions
Question 1 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 2 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 3 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.
Question 4 of 5
Which of the following epithelial types is most closely associated with active secretion at a mucosal surface, as in the stomach lining?
Correct Answer: C
Rationale: Simple columnar epithelium in the stomach secretes mucus and enzymes.
Question 5 of 5
In which of the following regions of the GI tract does the highest proportion of goblet cells occur in the surface epithelium of the mucosa?
Correct Answer: D
Rationale: The large intestine has the highest goblet cell density for lubrication.