ATI LPN
Questions for Review of Systems Gastrointestinal Questions
Question 1 of 5
Which of the following regions of the GI tract is characterized by stratified squamous epithelium?
Correct Answer: D
Rationale: The anal canal has stratified squamous epithelium for protection.
Question 2 of 5
Which of the following lacks clearly differentiated ducts (i.e., consists almost entirely of secretory cells)?
Correct Answer: D
Rationale: Gastric glands are mostly secretory cells with short pits, not distinct ducts.
Question 3 of 5
In H&E stained tissue sections, the basal cytoplasm in enzyme-secreting (serous) cells typically appears:
Correct Answer: B
Rationale: Basal cytoplasm is basophilic due to rough ER, staining blue/purple.
Question 4 of 5
Which of the following cell types is characterized by extensive basal rough endoplasmic reticulum, a supranuclear Golgi apparatus and apical zymogen vesicles?
Correct Answer: A
Rationale: Pancreatic acinar cells produce digestive enzymes with these features.
Question 5 of 5
Undifferentiated, mitotically active epithelial cells which can replace or regenerate the epithelial lining of the stomach are located:
Correct Answer: D
Rationale: Neck region stem cells regenerate gastric epithelium.