ATI RN
Digestive System Mcq Questions Questions
Question 1 of 5
If the sphincter at the top of the stomach is not working properly what do we suffer from?
Correct Answer: A
Rationale: A malfunctioning lower esophageal sphincter allows acid reflux, causing heartburn. Constipation, heart attacks, and diarrhea are unrelated to this sphincter.
Question 2 of 5
Peptide hormones are made of protein and are water soluble. They can therefore:
Correct Answer: B
Rationale: Peptide hormones bind to membrane receptors, triggering secondary messengers inside the cell.
Question 3 of 5
The glomerular capillaries are where?
Correct Answer: B
Rationale: Glomerular capillaries are in Bowman's capsule, where filtration occurs.
Question 4 of 5
The loop of Henle pumps sodium ions from the ascending arm to the descending. What is this called?
Correct Answer: D
Rationale: The countercurrent multiplier in the loop of Henle concentrates urine by moving sodium ions.
Question 5 of 5
Which of the following is not a function of the pancreas?
Correct Answer: D
Rationale: The pancreas does not secrete pepsin; this enzyme is produced by the stomach to digest proteins.