Nervous System Quiz 345 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. I use my ..... to smell a flower.

Correct Answer: B) Nose.

2. The sympathetic nervous system slows heart rate, decreases respiration, and increases activity in the digestive tract.

Correct Answer: B) False.

3. Which structure receives all ascending sensory tracts (except smell) and relays the signals to the correct part of the brain?

Correct Answer: B) Thalamus.

4. Combining form that means sheath (meninges)

Correct Answer: A) Thec/o.

5. When you hit your leg with a reflex hammer in the lab, this was an example of a/an:

Correct Answer: A) Somatic reflex.

6. Cells that line the central cavity of the brain & spinal corded are named

Correct Answer: C) Ependymal cells.

7. Largest portion of the brain; 4 lobes:frontal, parietal, temporal and occipital Responsible for conscious thought and reasoning

Correct Answer: B) Cerebrum.

8. A person that has constricted pupils, stimulated saliva production, reduced breathing and heart rate is probably undergoing .....

Correct Answer: B) A Rest or Digest response.

9. The right and left hemispheres are connected by the

Correct Answer: B) Callous body.

10. What is the main job of the digestive system?

Correct Answer: A) To break down food for energy.

11. There are over how many muscles in the body?

Correct Answer: C) 600.

12. What are INTERNEURONS? (pick 2)

Correct Answer: C) Connect sensory and motor neurons.

13. Which of the nerve branches listed mainly form the posterior cord of the brachial plexus?

Correct Answer: D) Radial nerve.

14. Which division of the nervous system is in charge of involuntary movements like our digestion, breathing rate and heart rate.

Correct Answer: A) Autonomic.

15. What is the term for the axon pathways carrying information up and down the spinal cord?

Correct Answer: C) Columns.

16. Serotonin is a neurotransmitter that helps regulate:

Correct Answer: D) Sleep, moods/emotions.

17. Unresponsive state from which a person can be aroused briefly with vigorous repeated attempts.

Correct Answer: B) Stupor.

18. Poli/o means gray or gray.....

Correct Answer: C) Matter.

19. What part of the eye focuses light on the retina?

Correct Answer: A) Lens.

20. Which of these is the most complex organ of our body?

Correct Answer: B) Brain.