Nervous System Quiz 130 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. A central opening of iris is

Correct Answer: C) Pupil.

2. What organs are the eyes, ears, nost and tounge?

Correct Answer: D) Sensory.

3. Neurons can synapse with .....

Correct Answer: D) All answers are correct.

4. Cranial Nerve 3 =

Correct Answer: B) Oculomator.

5. During repolarization, ..... ions are pumped out of the cell.

Correct Answer: A) Sodium.

6. The peripheral nervous system is made up of .....

Correct Answer: B) The nerves.

7. Which part of the brain is the largest?

Correct Answer: C) Cerebrum.

8. What does the blood-brain barrier control?

Correct Answer: B) Homeostasis for the brain and prevents infection.

9. This system controls all body functions

Correct Answer: B) Nervous system.

10. Which part of the cerebrum is responsible for touch, intellectual function, and speech

Correct Answer: A) Frontal.

11. Delicate

Correct Answer: C) Pia mater.

12. An action potential arriving at the presynaptic terminal causes

Correct Answer: B) Voltage-gated calcium ion channels to open, and calcium ions to diffuse into the cell.

13. The peripheral nervous systems consists of .....

Correct Answer: A) Neurons.

14. Dribbling

Correct Answer: C) Melted.

15. Feedback loops are important because they allow organisms and the environment to

Correct Answer: D) Maintain balance.

16. The order of Auditory Ossicles (from outside to inside)

Correct Answer: A) Hammer, Anvil, Staples.

17. What is the name of the opening that changes size to adjust for brightness?

Correct Answer: B) Pupil.

18. Slowly progressive decline in mental abilities including memory, thinking, and judging

Correct Answer: D) Dementia.

19. It connects the brain to the spinal cord.

Correct Answer: C) Brain Stem.

20. Type of nerve that carries messages to the CNS from the sense organs

Correct Answer: D) Sensory.