Nervous System Quiz 540 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Which term refers to the "hopping" of the nerve impulse across the Schwann cells?

Correct Answer: B) Saltatory conduction.

2. What does the lens do?

Correct Answer: A) Focuses light onto the retina.

3. The phrase, "Helps you clot, that way you won't bleed a lot" refers to this vitamin

Correct Answer: B) K.

4. The space between the axon terminal of the sending neuron and the dendrite or cell body of the receiving neuron is called the:

Correct Answer: B) Conclusion.

5. What type of neurons are in the white matter of the spinal cord?

Correct Answer: A) Myelinated.

6. Which organelle is known as the 'powerhouse' of the cell?

Correct Answer: B) Mitochondria.

7. The cause of Multiple Sclerosis is still unknown (T/F)?

Correct Answer: A) True.

8. That was a lot of information! I have one last question for you:What do we find in the dorsal root ganglion?

Correct Answer: A) Cell bodies of sensory neurons.

9. Which body system is the following statement true for? "It controls the body using a slower, longer-lasting method."

Correct Answer: B) Endocrine System.

10. Anything that causes a living organism to do something

Correct Answer: B) Stimulus.

11. Disease that is characterized by a droopy eyelid

Correct Answer: C) Myasthenia Gravis.

12. It regulates the breathing and is also responsible for (REM) RAPID EYE MOVEMENT, stage in sleep that is associated with dreaming

Correct Answer: B) Pons.

13. We have ..... eyes present in the eye sockets of our skull.

Correct Answer: C) Two.

14. What are the nerves (neurons)?

Correct Answer: A) The signal carriers.

15. If someone has problems with balance and estimating distances, what areas should be checked?

Correct Answer: B) Cerebellum.

16. What is the function of "afferent/sensory neurons" ?

Correct Answer: C) Carry impulses towards the CNS.

17. Controls the shape of the lens.

Correct Answer: A) Ciliary Body.

18. Which of the following receptors senses chemicals?

Correct Answer: A) Chemoreceptors.

19. When at rest, the charge inside the neuron is ..... and the charge outside the cell is .....

Correct Answer: B) Negative; positive.

20. The function of dendrites is to:

Correct Answer: A) Receive information from other neurons.