ATI LPN
ATI LPN Test Bank
Chapter 15 The Gastrointestinal System Review Questions Questions
Question 1 of 5
In which part of the alimentary canal does most digestion occur?
Correct Answer: B
Rationale: The duodenum (proximal small intestine) is the primary digestion site.
Question 2 of 5
Contraction of the __________ layer of the intestinal wall functions to change the shape of the intestinal lumen and moves food through its length.
Correct Answer: D
Rationale: The muscularis drives peristalsis.
Question 3 of 5
The __________ are pointed teeth that are adapted for tearing and shredding.
Correct Answer: D
Rationale: Cuspids (canines) tear food.
Question 4 of 5
Plicae Circularis and intestinal villi
Correct Answer: D
Rationale: Plicae and villi enhance absorption surface area.
Question 5 of 5
During the cephalic phase of gastric secretion,
Correct Answer: D
Rationale: The cephalic phase involves vagal stimulation.