Nervous System Quiz 1005 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Chemicals released by nerves to stimulate other nerves, muscles or glands

Correct Answer: B) Neurotransmitters.

2. The basic functional unit of nervous system is ..... ?

Correct Answer: A) Neurons.

3. Sends impulses away from the CNS

Correct Answer: A) Efferent Nerves.

4. The following are the functions of the skull, except:

Correct Answer: B) Connects the heart to the brain.

5. What is the role of the sodium-potassium pump during the action potential process?

Correct Answer: C) It restores the ion concentrations to normal and the resting potential returns.

6. Some rides at an amusement park cause a person to become dizzy. Which part of the ear is most likely involved with feeling dizzy?

Correct Answer: C) Semi-circular canals.

7. Two major branches of the nervous system

Correct Answer: A) CNS & PNS.

8. What type of sensory receptors detects touch, pressure and muscle movement?

Correct Answer: B) Mechanoreceptors.

9. Which detects at least five different chemical substances?

Correct Answer: C) Key bids.

10. Effectors which are beyond voluntary control include I triceps muscles. II iris muscles. III salivary glands. IV ileum muscles.

Correct Answer: B) II, III and IV only.

11. Both taste and smell are the body processing chemicals.

Correct Answer: A) True.

12. Type of neurotransmitter that excites skeletal muscles but inhibits cardiac muscle

Correct Answer: C) Acetylcholine.

13. True Or False:The Skull Is Attached To The Back Bone

Correct Answer: A) True.

14. Which part of the eye absorbs light from the sides of the eye?

Correct Answer: C) Choroid.

15. Which neuron carries an impulse to the synapse and is the sender?

Correct Answer: A) Presynaptic neuron.

16. Which cranial nerves have the highest branches

Correct Answer: B) Vagus nerve.

17. The three sections of the brain we talked about are the Old Brain, Limbic System and the .....

Correct Answer: D) Cerebral cortex.

18. Increased heart rate in response to danger is controlled by which division of the nervous system?

Correct Answer: A) Sympathetic.

19. The hypothalamus is part of the

Correct Answer: D) Diencephalon.

20. Short-term memory seems to be processed in the ..... and frontal lobe areas.

Correct Answer: B) Hippocampus.