Nervous System Quiz 1026 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Why does an increase in axon diameter result in an increase in conduction velocity?

Correct Answer: A) Reduced cytoplasmic resistance.

2. A neural pathway is best described as a

Correct Answer: C) Circuit of interconnected neurons along which information travels.

3. In-

Correct Answer: B) In, within.

4. This part of the neuron contains fibers that receive messages from other neurons.

Correct Answer: A) Dendrites.

5. Astrocytes, Ependymal Cells, Schwann cells, microglia, oligodendrocytes are all:

Correct Answer: C) Neuroglia.

6. The critical point at which a stimulus causes an action potential

Correct Answer: D) Threshold.

7. Inflammation of the brain.

Correct Answer: C) Encephalitis.

8. The inability to form the sounds of speech is called .....

Correct Answer: D) Verbal apraxia.

9. This nerve carries messages from the body to the brain?

Correct Answer: A) Sensory nerve.

10. Which part of the brain controls muscular coordination and balance?

Correct Answer: B) Cerebellum.

11. The basic unit of the nervous system is the .....

Correct Answer: B) Neuron.

12. Before neurotransmitters can be sent across the synaptic cleft, what needs to be received?

Correct Answer: B) An electrical impulse.

13. Shivering when it is too cold is an example of a ..... action. (Choose the most correct answer)

Correct Answer: D) Reflex.

14. The ribs protect your .....

Correct Answer: C) All of the above.

15. The functions of the spinal cord are

Correct Answer: C) Carries nervous information to and from the brain to the organs and prepare and send some responses directly to the organs.

16. A subdivision of the human nervous system comprising the brain and spinal cord. Transmits & receives messages to & from the PNS

Correct Answer: B) Central nervous system.

17. Hormones

Correct Answer: C) Chemical.

18. What is the term used for the place where two neurons meet?

Correct Answer: C) Conclusion.

19. Imagine Abigail, David, and Aiden are playing a game of 'Neuron Tag'. In this game, Abigail is the 'Interneuron'. What would be her role?

Correct Answer: C) She would carry the nerve impulse from one neuron (player) to another.

20. If you damage a spinal nerve, paralyzation will occur from which of the following locations

Correct Answer: B) At the damaged nerve and below.