NBDE Part 1 Practice Exam Series 30 – Physiology NBDE Part 1 Study Material

Question 6: Which of the following statement is correct?

The primary functional unit of both the sympathetic and parasympathetic nervous system is a one-neuron motor pathway.

The peripheral nervous system includes the brain and spinal cord.

 

A. Both statements are correct

B. Both statements are incorrect

C. The first statement is correct while the second statement is incorrect

D. The first statement is incorrect while the second statement is correct

Answer

Answer: [B]

 

Question 7: The presynaptic sympathetic nerve fibers originate in lateral horns of the spinal cord segments:

A. C1-C5

B. C5-T1

C. T1-L2

D. T1-T5

Answer

Answer: [C]

 

Question 8: What happens when depolarization of the motor nerve takes place?

A. Influx of calcium

B. Efflux of calcium

C. Inhibition of Ach

D. The closing of sodium channels

Answer

Answer: [A]

 

Question 9: Entry of_____________ into the presynaptic terminal triggers the release of neurotransmitter?

A. Sodium

B. Calcium

C. Potassium

D. Chloride

Answer

Answer: [B]

 

Question 10: Which of the following statement is correct?

Diffusion and osmosis are types of passive transport.

In the active transport source of energy is ATP.

 

A. Both statements are correct

B. Both statements are incorrect

C. The first statement is correct while the second statement is incorrect

D. The first statement is incorrect while the second statement is correct

Answer

Answer: [A]

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