ATI LPN
NCLEX Questions on Gastrointestinal System Questions
Question 1 of 5
In most regions of the GI tract (exceptions are oral cavity and stomach), smooth muscle fibers of the muscularis are arranged into:
Correct Answer: A
Rationale: The muscularis externa typically has an inner circular and outer longitudinal layer for peristalsis.
Question 2 of 5
Tubular invaginations (crypts, pits or glands) occurring within the mucosa (embedded in lamina propria), are not characteristic of the:
Correct Answer: A
Rationale: The esophagus lacks mucosal glands or crypts; they begin in the stomach and intestines.
Question 3 of 5
Choose the best description of the esophagus.
Correct Answer: A
Rationale: The esophagus has nonkeratinized epithelium for protection, with mucous glands in the submucosa.
Question 4 of 5
Choose the best description of the appendix.
Correct Answer: D
Rationale: The appendix has crypts, goblet cells, and extensive lymphoid tissue.
Question 5 of 5
In which of the following regions of the GI tract does the mucosa most closely resemble that of the colon, but with more lymphoid tissue?
Correct Answer: D
Rationale: The appendix resembles the colon but has more lymphoid tissue.