ATI LPN
Gastrointestinal System NCLEX Questions Questions
Question 1 of 5
Besides loose connective tissue with numerous lymphocytes, lamina propria may contain:
Correct Answer: D
Rationale: Lamina propria supports a variety of structures including capillaries, nerves, lymphatics, and nodules for nutrient exchange and immune function.
Question 2 of 5
The crypts of pharyngeal tonsils are lined by:
Correct Answer: D
Rationale: Pharyngeal tonsils (adenoids) have ciliated pseudostratified epithelium, reflecting their respiratory proximity.
Question 3 of 5
Submucosal glands also occur in the:
Correct Answer: A
Rationale: Duodenal (Brunner's) glands are submucosal, secreting alkaline mucus.
Question 4 of 5
Which of the following epithelial types is most closely associated with active absorption at a mucosal surface, as in small intestine and colon?
Correct Answer: C
Rationale: Simple columnar epithelium in the intestines supports absorption with microvilli.
Question 5 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.