Nervous System Quiz 146 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Most important and common inhibitory neurotransmitter

Correct Answer: D) Gama-Aminobutyric Acid (GABA).

2. We have five sense organs.

Correct Answer: B) True.

3. What is the function of the Soma?

Correct Answer: A) Life support.

4. What might happen if your body lacked neurotransmitters?

Correct Answer: A) Your nerve cells could not communicate with one another.

5. What is the English Meaning of the Medical Term Mening/o [ MENING/O ]?

Correct Answer: B) Meninges [ Coverings of the Brain and the Spinal Chord ].

6. The human brain is about ..... % of the normal body weight and consumes ..... of the total oxygen taken into the body.

Correct Answer: A) 2, 25.

7. What is a phenotype

Correct Answer: B) The physical trait.

8. This structure is the back of the eye and it sends images to the optic nerve.

Correct Answer: C) Retina.

9. Peripheral Nervous System includes

Correct Answer: C) All Parts of the nervous system outsides of the brain and spinal cord.

10. The joint between the skull and the backbone is ..... joint.

Correct Answer: B) Pivot.

11. Which of the following does NOT correctly describe a resting neuron?

Correct Answer: A) Positive extracellular environment with higher concentrations of sodium.

12. The point at which an impulse from one nerve cell is communicated to another cell is called the:

Correct Answer: B) Conclusion.

13. What is the role of the myelin sheath in the transmission of nerve impulses?

Correct Answer: A) Insulates and protects the nerve fibers, allowing for faster transmission of nerve impulses.

14. Myelin sheaths are made from ....., a type of glial cell.

Correct Answer: B) Schwann cells.

15. Whitish, fatty material covering axons

Correct Answer: D) Myelin sheath.

16. Which external stimulus is detected by sensory receptors in the skin?

Correct Answer: D) Pressure.

17. Chemical synapses are faster than electrical synapses.

Correct Answer: B) False.

18. Which inner ear structure contains the structures for hearing?

Correct Answer: C) Cochlea.

19. We should book ..... away from our eyes.

Correct Answer: C) 12 inches.

20. What are the 3 main parts of the brain?

Correct Answer: B) Brain, cerebellum, medulla.