Nokea
How should the student explain the normal function of the pancreas in the process of digestion?
- A. Produces enzymes for digestion
- B. Stores bile
- C. Secretes gastrin
- D. Absorbs nutrients
Correct Answer: A
Rationale: The pancreas produces digestive enzymes (e.g., trypsin, amylase) for breaking down proteins, carbohydrates, and fats.
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During active HCL secretion parietal cell shows:
- A. Few short microvilli while tubulovesicular system increases.
- B. Microvilli are prominent numerous while the tubulovesicular system decreases.
- C. More rER & secretory vesicles
- D. Cytoplasm becomes more basophilic
Correct Answer: B
Rationale: During active HCl secretion, parietal cells' intracellular canaliculi expand with numerous microvilli, and the tubulovesicular system decreases as it fuses with the canaliculi.
Which of the following hormones is primarily responsible for stimulating the release of hydrochloric acid (HCl) from parietal cells during the gastric phase?
- A. Insulin
- B. Gastrin
- C. Glucagon
- D. Somatostatin
Correct Answer: B
Rationale: Gastrin, released by G cells, stimulates parietal cells to secrete HCl during the gastric phase of digestion.
Which structure produces a liquid called chyme to help with the digestive process?
- A. 3
- B. 2
- C. 1
- D. 4
Correct Answer: A
Rationale: Structure 3 (stomach) produces chyme by mixing food with gastric juices. (Assuming typical diagram numbering; stomach is often 3.)
The crypts of Lieberkuhn secrete :
- A. Gastrin
- B. Rennin
- C. Cholecystokinin
- D. Succus entericus
Correct Answer: D
Rationale: Crypts of Lieberkuhn secrete succus entericus (intestinal juice) for digestion in the small intestine.
On average what is the normal intake of water?
- A. 3200 cm^3
- B. 2300 cm^3
- C. 1300 cm^3
- D. 5000 cm^3
Correct Answer: B
Rationale: Average daily water intake is about 2300 cm³ (2.3 liters), including food and drink.