Nokea
Parotid gland, all true except:
- A. Secrete 25% of salivary secretion
- B. Formed mainly of mixed acini
- C. Has prominent striated ducts
- D. Its inflammation results in mumps
Correct Answer: B
Rationale: The parotid gland is purely serous, not mixed, secreting watery saliva rich in enzymes.
You may also like to solve these questions
What are the advantages of chewing food at the start of digestion?
- A. increasing surface area
- B. lubricating food
- C. making food soluble
- D. all of the above
Correct Answer: D
Rationale: Chewing increases the surface area for enzyme action, lubricates food with saliva, and helps dissolve food particles.
PYLORUS OF THE STOMACH all true except:
- A. The mucosa is thinner than that of fundus.
- B. Glands are lined with Mucous neck cells
- C. Glans are perpendicular on muscularis mucosa
- D. Pits are deep & wide
Correct Answer: C
Rationale: Pyloric glands are not perpendicular but are coiled and branched, unlike the straighter fundic glands.
Alcohol causes dehydration. How?
- A. Stimulates ADH production
- B. Replaces water in the body
- C. Makes you too drunk to drink water
- D. Inhibits ADH production
Correct Answer: D
Rationale: Alcohol inhibits ADH, reducing water reabsorption and increasing urine output, leading to dehydration.
Which of the following statements are true about the Pancreatic juice?
- A. Pancreatic juice is acidic.
- B. Pancreatic juice is alkaline.
- C. Pancreatic juice is neutral.
- D. All of the above.
Correct Answer: B
Rationale: Pancreatic juice is alkaline due to its bicarbonate content, which neutralizes the acidic chyme entering the duodenum.
Amylase in saliva initiates digestion of:
- A. lipids
- B. proteins
- C. fats
- D. carbohydrates
Correct Answer: D
Rationale: Salivary amylase breaks down carbohydrates into simpler sugars.