ATI LPN
Questions About Gastrointestinal System Questions
Question 1 of 5
Microscopic finger-like projections of the intestinal mucosa are called intestinal:
Correct Answer: C
Rationale: Villi are finger-like projections increasing absorption surface area.
Question 2 of 5
Which of the following regions of the GI tract is characterized by numerous short tubular invaginations but no villi?
Correct Answer: D
Rationale: The colon has crypts but no villi, unlike the small intestine.
Question 3 of 5
The parotid gland is a:
Correct Answer: A
Rationale: The parotid gland is purely serous, secreting enzymes like amylase.
Question 4 of 5
All of the following are primarily mucous-secreting glands EXCEPT:
Correct Answer: C
Rationale: Fundic glands secrete acid and pepsinogen, not primarily mucus.
Question 5 of 5
Which of the following is characteristic of serous (enzyme-secreting) cells?
Correct Answer: D
Rationale: All features enable enzyme synthesis and secretion.