ATI LPN
Questions About Gastrointestinal System Questions
Question 1 of 5
The germinal centers of lymph nodules function as sites where:
Correct Answer: D
Rationale: Germinal centers are where B lymphocytes proliferate in response to antigens.
Question 2 of 5
Choose the best description of the jejunum.
Correct Answer: A
Rationale: The jejunum has villi, crypts, goblet cells, and an unspecialized submucosa.
Question 3 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 4 of 5
The parotid gland is a:
Correct Answer: A
Rationale: The parotid gland is purely serous, secreting enzymes like amylase.
Question 5 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.