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
- Chief cells
- G cells
- Mucous neck cells
Q2. How does somatostatin affect gastric acid secretion?
- Promotes mucus release
- Inhibits gastrin and acid secretion
- Stimulates acid production
- Activates pepsinogen
Q3. Which gastric phase is triggered by the thought or smell of food?
- Gastric phase
- Intestinal phase
- Basal phase
- Cephalic phase
Q4. What is the role of carbonic anhydrase in parietal cells?
- Reabsorbs sodium
- Breaks down proteins
- Activates gastrin
- Generates H⁺ and HCO₃⁻ for acid secretion
Q5. Which receptor does histamine act on to increase acid secretion?
- Beta receptor
- H₂ receptor
- H₁ receptor
- Alpha receptor
Q6. What best describes the blood flow pattern in the gastric mucosa?
- Countercurrent exchange system
- Closed-loop perfusion
- Portal venous loop
- Lymphatic drainage only
Q7. What is the primary cause of peptic ulcers linked to H. pylori?
- Increased mucus secretion
- Excess bicarbonate production
- Decreased gastric motility
- Mucus barrier disruption and increased acid exposure
Q8. Which ion is secreted into the stomach lumen along with chloride during acid production?
- Bicarbonate (HCO₃⁻)
- Sodium (Na⁺)
- Potassium (K⁺)
- Hydrogen (H⁺)
Q9. Which cells secrete gastrin in the stomach?
- Chief cells
- G cells
- ECL cells
- D cells
Q10. How does vagus nerve stimulation enhance gastric function?
- Decreases blood flow
- Suppresses enzyme activation
- Inhibits secretions
- Increases acid and motility