ATI RN
Questions About The Digestive System Questions
Question 1 of 5
Where are the Islets of Langerhans found?
Correct Answer: A
Rationale: The Islets of Langerhans are clusters of cells in the pancreas responsible for producing hormones like insulin and glucagon.
Question 2 of 5
A 70-year-old male patient is experiencing symptoms of constipation, bloating, and abdominal discomfort. Physical examination reveals visible distension of the abdomen, and a contrast study shows dilation of the large intestine. Which of the following motility disorders is the most probable cause of the patient's symptoms?
Correct Answer: C
Rationale: Reduced peristalsis in the large intestine slows transit, leading to constipation, bloating, and dilation, as seen in the contrast study.
Question 3 of 5
Which division of the Enteric Nervous System is most likely to be stimulated by a pH change in the chyme?
Correct Answer: A
Rationale: The submucosal plexus regulates secretions and senses luminal pH changes, responding to chyme acidity.
Question 4 of 5
Which of the following hormones is primarily responsible for stimulating the release of hydrochloric acid (HCl) from parietal cells during the gastric phase?
Correct Answer: B
Rationale: Gastrin, released by G cells, stimulates parietal cells to secrete HCl during the gastric phase of digestion.
Question 5 of 5
A compound called Bilirubin gives bile its colour. Where does it come from?
Correct Answer: A
Rationale: Bilirubin is a breakdown product of hemoglobin from red blood cells, processed by the liver and excreted in bile.