Nervous System Quiz 175 (20 MCQs)

Quiz Instructions

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1. Which structure insulates the nerve impulse?

Correct Answer: B) Myelin Sheath.

2. The part of the peripheral nervous system that brings information to the central nervous system is the

Correct Answer: B) Afferent.

3. Which type of neuron carries impulses from the skin and organs to the spinal cord and brain?

Correct Answer: A) Sensory (afferent) neurons.

4. There are 12 pairs of spinal nerves.

Correct Answer: B) False.

5. Sensory nerves carry messages from the sense organs to the brain .....

Correct Answer: A) True.

6. The reticular activating system is important for ..... When it is damaged, the person may fall into a .....

Correct Answer: B) Wakefulness; coma.

7. An axon has a myelin sheath produced by Schwann cells. Where is this axon located?

Correct Answer: A) PNS.

8. Menstrual

Correct Answer: C) Menstruation/menstruation.

9. Which type of nerve fibers innervate skeletal muscles to control voluntary movements?

Correct Answer: D) Somatic motor nerve fibers.

10. This type of response requires you to think about it to control it. (example= running)

Correct Answer: A) VOLUNTARY.

11. Which neurons conduct impulses away from receptors in the PNS to the CNS?

Correct Answer: A) Sensory neurons.

12. The two main types of cells found in the nervous system are

Correct Answer: B) Neurons and neuroglia.

13. Does the nervous system has it's own cells?

Correct Answer: A) Yes.

14. Which of these is a long bone?

Correct Answer: A) Femur.

15. Which of the following is the INCORRECT pairing of neuron and neurotransmitter released?

Correct Answer: D) Parasympathetic postganglionic neuron-norepinephrine.

16. The axillary nerve comes off of which spinal root?

Correct Answer: A) C5 and C6.

17. Which of the following does NOT describe an astrocyte?

Correct Answer: C) Produce myelin.

18. What is the function of the brain stem?

Correct Answer: B) To monitor and control body functions such as heartbeat, respiration, body temperature, and digestion.

19. Largest part of the brain

Correct Answer: A) Cerebrum.

20. The junction where one neuron can transfer an impulse to another structure is called .....

Correct Answer: B) Conclusion.