ATI LPN
Gastrointestinal System NCLEX Questions Questions
Question 1 of 5
Submucosal glands also occur in the:
Correct Answer: A
Rationale: Duodenal (Brunner's) glands are submucosal, secreting alkaline mucus.
Question 2 of 5
Which of the following regions of the GI tract is characterized by simple columnar epithelium on the mucosal surface which apparently consists of a single cell type, without goblet cells?
Correct Answer: B
Rationale: The stomach's surface epithelium is simple columnar mucus-secreting cells, lacking goblet cells.
Question 3 of 5
In which region of the GI tract is the longitudinal muscle of the muscularis arranged into distinct longitudinal bundles (taenia)?
Correct Answer: D
Rationale: The colon has taenia coli, distinct longitudinal muscle bands.
Question 4 of 5
Duodenal (Brunner's) glands are located:
Correct Answer: B
Rationale: Brunner's glands are in the submucosa, secreting alkaline mucus.
Question 5 of 5
Which of the following is characteristic of mucus-secreting cells?
Correct Answer: D
Rationale: All features support mucus synthesis and secretion.