ATI RN
Digestive System Exam Questions Questions
Question 1 of 5
Infants' gastric juice contains
Correct Answer: D
Rationale: Infants' gastric juice contains pepsinogen, lipase, and rennin to aid in milk digestion.
Question 2 of 5
The liver facilitates the conjugation of bilirubin with glucuronic acid, resulting in the formation of bilirubin glucuronide. The primary objective of this process is to:
Correct Answer: D
Rationale: Conjugation makes bilirubin water-soluble, allowing its excretion in bile and urine, preventing accumulation.
Question 3 of 5
Which part(s) of the esophagus necessitate(s) input from the central nervous system to orchestrate peristalsis?
Correct Answer: A
Rationale: The upper third of the esophagus, with striated muscle, requires CNS input (via the vagus nerve) for primary peristalsis.
Question 4 of 5
Saliva contains two enzymes. What are they?
Correct Answer: B
Rationale: Saliva contains salivary amylase (ptyalin) for starch digestion and lysozyme for antibacterial action. Pepsin is in the stomach, lipase is mainly pancreatic, and renin is unrelated to saliva.
Question 5 of 5
Which part of the nervous system controls the digestive system?
Correct Answer: C
Rationale: The autonomic nervous system regulates involuntary digestive processes like peristalsis and secretion.