Nervous System Quiz 1022 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Nerves are long thin fibres who send messages to the

Correct Answer: B) Brain.

2. Supporting cells within the CNS that produce myelin sheath:

Correct Answer: B) Oligodendrocytes.

3. The spinal nerves run vertically and intersect both visceral and somatic areas of the body.

Correct Answer: B) False.

4. To relieve the pressure on the eardrum when scuba diving or flying in an airplane, one must force air into the .....

Correct Answer: A) Eustachian tube.

5. Which is the gateway of pain according to principal of pain sensation

Correct Answer: A) Spinal cord.

6. For most people, language functions are in the

Correct Answer: A) Brain's Left Hemisphere.

7. Controls lateral rectus eye muscles

Correct Answer: C) Abducting.

8. Which of these is expected if the sympathetic nervous system is activated

Correct Answer: B) Blood flow to skeletal muscles increases.

9. Neurotransmitters are released from the postsynaptic cleft and bind to the presynaptic neuron (T/F)?

Correct Answer: B) False.

10. This is showing what?

Correct Answer: B) Organ system.

11. The ..... controls involuntary actions.

Correct Answer: B) Brain stem.

12. Direction of nerve impulse

Correct Answer: D) Dendrite, cell body, axon.

13. What is the structure of the eye that allows light to pass through because it can dilate and contract?

Correct Answer: B) Iris.

14. Which structure in the inner ear is responsible for static equilibrium?

Correct Answer: D) Vestibule.

15. We must go to a doctor if we have a earache.

Correct Answer: A) True.

16. Action Potential is

Correct Answer: A) Is the change in the membrane potential, which generally happens when a resting neuron is depolarize.

17. Which parts does the brainstem include?

Correct Answer: A) Medulla oblongata, midbrain, and pons.

18. Neuroglia that produce scar tissue in the brain and spinal cordbut also contribute to the blood-brain barrier are

Correct Answer: B) Astrocytes.

19. ..... are the communicators of the nervous system

Correct Answer: D) Neurons.

20. The lens of the eye can focus light to make sharp pictures.

Correct Answer: A) True.