28 Gastrointestinal Hormones
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Questions and Answers

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?

    <p>Amino acids and fatty acid chains (B)</p> Signup and view all the answers

    Which hormone is primarily stimulated by acid in the duodenum?

    <p>Somatostatin (B)</p> Signup and view all the answers

    What inhibits the secretion of somatostatin?

    <p>Acid in the duodenum (C)</p> Signup and view all the answers

    What is the primary target of motilin?

    <p>Stomach antrum (D)</p> Signup and view all the answers

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

    <p>Glucagon (D)</p> Signup and view all the answers

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

    <p>Increases intestinal motor activity (C)</p> Signup and view all the answers

    What causes an increase in pancreatic HCO3- release?

    <p>Gastrin (B)</p> Signup and view all the answers

    What is the effect of anorexia mediated by the hypothalamus?

    <p>Decreases appetite (C)</p> Signup and view all the answers

    Which hormone is primarily responsible for promoting protein synthesis?

    <p>Insulin (B)</p> Signup and view all the answers

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

    <p>Inhibits acid secretion and stomach contraction (A)</p> Signup and view all the answers

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

    <p>Decreased intrinsic factor production (D)</p> Signup and view all the answers

    What is the primary effect of somatostatin on pancreatic function?

    <p>Inhibits pancreatic secretion (B)</p> Signup and view all the answers

    Which cell type secretes pancreatic polypeptide?

    <p>Islet cells in pancreas (B)</p> Signup and view all the answers

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