Nokea
All about foliate papilla is true EXCEPT:
- A. Present at tip & sides of tongue rabbit
- B. Covered by st sq nonkeratinized epith.
- C. Rare in human but numerous in rabbits
- D. Its sides carry taste buds.
Correct Answer: A
Rationale: Foliate papillae are located on the posterolateral sides of the tongue, not the tip, and are rudimentary in humans but prominent in rabbits.
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Which of the following is synthesized and stored in the liver cells?
- A. Galactose
- B. Lactose
- C. Glycogen
- D. Arabinose
Correct Answer: C
Rationale: Glycogen is synthesized and stored in the liver for energy reserve.
Where are the baroreceptors (measure blood pressure)?
- A. Lungs
- B. Heart muscle
- C. Hypothalamus
- D. Aortic arch
Correct Answer: D
Rationale: Baroreceptors in the aortic arch and carotid sinus detect blood pressure changes.
Which organ listed below does not belong in digestive system?
- A. liver
- B. spleen
- C. tongue
- D. stomach
Correct Answer: B
Rationale: The spleen is part of the lymphatic and immune systems, not the digestive system.
Endothelial cells of liver sinusoids, the following is true except:
- A. Lie on a discontinuous basal lamina
- B. Separated from hepatocytes by space of Disse
- C. The underlying space of Disse contain red blood cells
- D. The fenestra on its surface are collected at areas called sieve plates
Correct Answer: C
Rationale: The space of Disse contains plasma and microvilli, not red blood cells, which remain in the sinusoidal lumen.
Which of the given enzymes is responsible for the digestion of milk protein?
- A. Erepsin
- B. Trypsin
- C. Pepsin
- D. Rennin
Correct Answer: D
Rationale: Rennin is responsible for the digestion of milk protein. Rennin is present in the human body in its inactive form called prorenin. When we consume milk, it reacts with the hydrochloric acid present in the stomach. Hydrochloric acid activates the inert prorenin and converts it into active Rennin.