28 Gastrointestinal Hormones

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Which of the following hormones is primarily responsible for stimulating the secretion of HCl, intrinsic factor, and pepsinogen?

CCK

Secretin

Gastrin (correct)

Somatostatin

What is the primary effect of Omeprazole on parietal cells?

Stimulates the release of intrinsic factor

Activates the release of pepsinogen

Induces the release of gastrin

Inhibits the release of H+ (correct)

Which hormone primarily inhibits the release of insulin, glucagon, secretin, CCK, and motilin?

Gastrin

Somatostatin (correct)

CCK

Secretin

What stimulates the secretion of CCK?

Amino acids and fatty acid chains Signup and view all the answers

Which hormone is primarily stimulated by acid in the duodenum?

Somatostatin Signup and view all the answers

What inhibits the secretion of somatostatin?

Acid in the duodenum Signup and view all the answers

What is the primary target of motilin?

Stomach antrum Signup and view all the answers

Which hormone is mainly released by alpha cells of the pancreas in a starvation state?

Glucagon Signup and view all the answers

What is the effect of bombesin (gastrin-releasing peptide) on intestinal motor activity?

Increases intestinal motor activity Signup and view all the answers

What causes an increase in pancreatic HCO3- release?

Gastrin Signup and view all the answers

What is the effect of anorexia mediated by the hypothalamus?

Decreases appetite Signup and view all the answers

Which hormone is primarily responsible for promoting protein synthesis?

Insulin Signup and view all the answers

What is the effect of peptide YY following a fatty meal?

Inhibits acid secretion and stomach contraction Signup and view all the answers

What is the cause of B12 deficiency in gastric bypass patients?

Decreased intrinsic factor production Signup and view all the answers

What is the primary effect of somatostatin on pancreatic function?

Inhibits pancreatic secretion Signup and view all the answers

Which cell type secretes pancreatic polypeptide?

Islet cells in pancreas Signup and view all the answers

28 Gastrointestinal Hormones

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