Advanced Stomach Quiz

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This quiz contains 10 questions. Click below to begin.

Q1. Which gastric cell type secretes histamine?

  • Enterochromaffin-like (ECL) cells
  • Mucous neck cells
  • G cells
  • Chief cells

Q2. How does somatostatin affect gastric acid secretion?

  • Stimulates acid production
  • Promotes mucus release
  • Activates pepsinogen
  • Inhibits gastrin and acid secretion

Q3. Which gastric phase is triggered by the thought or smell of food?

  • Gastric phase
  • Cephalic phase
  • Intestinal phase
  • Basal phase

Q4. What is the role of carbonic anhydrase in parietal cells?

  • Activates gastrin
  • Generates H⁺ and HCO₃⁻ for acid secretion
  • Reabsorbs sodium
  • Breaks down proteins

Q5. Which receptor does histamine act on to increase acid secretion?

  • H₁ receptor
  • Beta receptor
  • H₂ receptor
  • Alpha receptor

Q6. What best describes the blood flow pattern in the gastric mucosa?

  • Lymphatic drainage only
  • Portal venous loop
  • Closed-loop perfusion
  • Countercurrent exchange system

Q7. What is the primary cause of peptic ulcers linked to H. pylori?

  • Mucus barrier disruption and increased acid exposure
  • Excess bicarbonate production
  • Increased mucus secretion
  • Decreased gastric motility

Q8. Which ion is secreted into the stomach lumen along with chloride during acid production?

  • Bicarbonate (HCO₃⁻)
  • Potassium (K⁺)
  • Hydrogen (H⁺)
  • Sodium (Na⁺)

Q9. Which cells secrete gastrin in the stomach?

  • ECL cells
  • Chief cells
  • D cells
  • G cells

Q10. How does vagus nerve stimulation enhance gastric function?

  • Decreases blood flow
  • Increases acid and motility
  • Inhibits secretions
  • Suppresses enzyme activation
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