ATI LPN
Gastrointestinal System Questions and Answers Questions
Question 1 of 5
Teeth are similar to bone and contain a mineralized matrix called
Correct Answer: C
Rationale: Dentin is the mineralized matrix beneath enamel.
Question 2 of 5
An intestinal hormone that stimulates the gall bladder to release bile is
Correct Answer: B
Rationale: CCK stimulates bile release.
Question 3 of 5
The muscularis externa of the upper third of the esophagus has primarily
Correct Answer: A
Rationale: The upper third of the esophagus has skeletal muscle in its muscularis externa, allowing voluntary swallowing control.
Question 4 of 5
All lipids are absorbed through the brush border of the small intestine by the process of
Correct Answer: D
Rationale: Lipids, after emulsification by bile, are absorbed via simple diffusion across the brush border into enterocytes.
Question 5 of 5
Which of the following statements about a tooth is NOT correct?
Correct Answer: B
Rationale: The pulp cavity is vascular and innervated, not avascular, making this statement incorrect.