Nervous System Quiz 52 (20 MCQs)

Quiz Instructions

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1. The central nervous system and the peripheral nervous system work together.

Correct Answer: A) True.

2. The CNS consists of

Correct Answer: C) Both a and b.

3. Pale skin

Correct Answer: C) Pale face.

4. The ..... sheath is an electrical insulator, made of layers of lipids that covers the axon.

Correct Answer: C) Myelin.

5. Which two organs does the Central Nervous System include?

Correct Answer: B) Brain and Spinal Cord.

6. Which part of the brain is responsible for controlling heart rate?

Correct Answer: B) Medulla.

7. Which of the following regulates the transition between sleeping, being awake, and being in a heightened state of awareness?

Correct Answer: C) Reticular formation.

8. Carries messages from the sense organs to the spinal cord and brain

Correct Answer: A) Sensory neurons.

9. The smaller bone of the forearm, on the same side as the thumb, is the .....

Correct Answer: C) Radius.

10. In the contraction cycle, ATP is required for which step

Correct Answer: C) Release of myosin head.

11. The myelin-producing neuroglia of the peripheral nervous system

Correct Answer: B) Schwann cells.

12. The brain and spinal cord consist of two types of matter-grey and white. Which contains nerve cells and is well supplied with blood vessels?

Correct Answer: A) Grey matter.

13. Hich of the following statements is TRUE?

Correct Answer: C) Nerves are tracts that carry information from and to the central nervous system.

14. How does the nervous system help maintain homeostasis?

Correct Answer: B) The nervous system senses the environment inside of your body, including temperature.

15. This is the primary organ of CNS that receives and interprets countless signals.

Correct Answer: C) Brain.

16. What is the role of neurotransmitters in signal transmission?

Correct Answer: C) Transmitting signals across the synapse from one neuron to another.

17. Regulates the amount of light entering the eye and gives the eye its color.

Correct Answer: A) Iris.

18. Where is the brain located?

Correct Answer: B) Cranial cavity.

19. When the spinal cord shortcuts the brain to help protect the body its called a .....

Correct Answer: A) Reflex arc.

20. The ..... is the body's control center.

Correct Answer: C) Brain.