Nervous System Quiz 439 (20 MCQs)

Quiz Instructions

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1. Which of the following is true regarding the central nervous system (CNS) and peripheral nervous system (PNS)?

Correct Answer: A) The CNS includes the brain, spinal cord, and nerves.

2. How many pairs of cranial nerves and spinal nerves does the body have?

Correct Answer: C) 12 pairs cranial, 31 pairs spinal.

3. What do the hair cells do?

Correct Answer: D) Vibrate at different frequencies.

4. Which is not a major brain region?

Correct Answer: D) Hypothalamus.

5. Which abbreviation refers to a recording of electrical activity in the brain to help locate seizure activity?

Correct Answer: C) EEG.

6. When someone says '' I need to use my gray matter, " they are referring to the .....

Correct Answer: B) Cerebral cortex.

7. Which of the following contains the vital reflex centers?

Correct Answer: D) Medulla oblongata.

8. The system that is made up of the brain and spinal cord

Correct Answer: A) Central Nervous System.

9. It is known as the fifth lobe.

Correct Answer: D) Insula.

10. What is the third step in a reflex arc?

Correct Answer: E) Interneuron (integration center).

11. Number of spinal nerves

Correct Answer: C) 31 pairs31 pairs.

12. Label 14

Correct Answer: C) Sciatic Nerve.

13. Which type of glial cell provides immune defense in the CNS?

Correct Answer: A) Microglia cells.

14. Which neuroimaging method is similar to an X-ray, but provides a more sensitive picture of possible brain abnormalities?

Correct Answer: A) CT.

15. Motor neurons carry signals from CNS to ..... parts of the body.

Correct Answer: B) Outside.

16. Poliomyelitis is a highly contagious viral infection of the brainstem and spinal cord that sometimes leads to paralysis.

Correct Answer: A) True.

17. Which is a nerve CELL that transfers messages using electrical energy?

Correct Answer: B) Neuron.

18. Multipolar neurons called ..... neurons send signals from the central nervous system to effectors, such as muscles and glands

Correct Answer: B) Motor.

19. It is a neurological disorder that causes seizures due to faulty electricalimpulses in the brain.

Correct Answer: C) EPILEPSY.

20. This lobe of the cerebrum contains the primary motor cortex and is essential for problem solving, and speech

Correct Answer: A) Frontal.