Question 1

Which hormone is released in response to partially digested proteins and lipids in chyme entering the duodenum, and what is its primary effect?

Accepted Answer

Cholecystokinin (CCK); causes gallbladder contraction and release of bile

Question 2

A patient with decreased stomach pH is likely to have increased secretion of which hormone, and what is its effect?

Accepted Answer

Somatostatin; decreases acid secretion by parietal cells

Question 3

Which hormone is released when the stomach is distended and what is its physiological effect?

Accepted Answer

Serotonin; stimulates gastric motility

Question 4

If a patient has a deficiency in histamine production in the stomach, which of the following is most likely to occur?

Accepted Answer

Decreased acid secretion by parietal cells

Question 5

Which hormone inhibits acid secretion from parietal cells when chyme enters the small intestine?

Accepted Answer

Gastric inhibitory peptide

Question 6

A patient is experiencing increased acid secretion in the stomach after eating a protein-rich meal. Which two hormones are most likely responsible for this effect?

Accepted Answer

Gastrin and histamine

Question 7

Which hormone is released in response to partially digested proteins in the duodenum and inhibits gastric motility and acid secretion?

Accepted Answer

Secretin

Question 8

What is the effect of vasoactive intestinal peptide (VIP) on the digestive system?

Accepted Answer

Inhibits acid secretion by parietal cells and increases intestinal blood flow

Question 9

A patient with impaired gallbladder contraction may have a deficiency in which hormone?

Accepted Answer

Cholecystokinin (CCK)

Question 10

Which hormone stimulates acid secretion from parietal cells in the small intestine?

Accepted Answer

Intestinal gastrin

Question 11

If a patient has increased secretion of somatostatin, what would be the expected effect on stomach acid levels?

Accepted Answer

Decrease in stomach acid levels

Question 12

Which hormone is released in response to stimulation from the vagus nerve and increases acid secretion by parietal cells?

Accepted Answer

Histamine

Question 13

A patient with decreased bicarbonate ion release from pancreatic duct cells may have a deficiency in which hormone?

Accepted Answer

Secretin

Question 14

Which hormone is responsible for relaxing the hepatopancreatic sphincter?

Accepted Answer

Cholecystokinin (CCK)

Question 15

A patient presents with increased intestinal blood flow and pancreatic secretion. Which hormone is most likely elevated?

Accepted Answer

Vasoactive intestinal peptide (VIP)

Question 16

Which hormone is released in response to chyme entering the small intestine and inhibits acid secretion from parietal cells?

Accepted Answer

Gastric inhibitory peptide

Question 17

If a patient has increased secretion of serotonin in the stomach, what would be the expected effect?

Accepted Answer

Increased gastric motility

Question 18

Which hormone stimulates secretion of pancreatic enzymes from acinar cells?

Accepted Answer

Cholecystokinin (CCK)

Question 19

A patient with decreased acid secretion by parietal cells in both the stomach and small intestine may have elevated levels of which two hormones?

Accepted Answer

Somatostatin and vasoactive intestinal peptide (VIP)

Question 20

Which hormone increases bile production by the liver and stimulates bicarbonate ion release from pancreatic duct cells?

Accepted Answer

Secretin

Hormonal Regulation of the Digestive System

Study Guide - Practice Questions

Study Guide - Flashcards