Nervous System Quiz 754 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. What is the second step in a reflex arc?

Correct Answer: D) Afferent neuron (sensory neuron).

2. An increase in the negativity of the membrane potential.

Correct Answer: A) Hyperpolarization.

3. ..... are tubes that return blood to the heart.

Correct Answer: B) Veins.

4. The part of the brain that controls the most basic functions of life

Correct Answer: C) Brain stem.

5. Isch/o

Correct Answer: D) Back; to hold back.

6. Inflammation of the spinal cord.

Correct Answer: A) Myelitis.

7. The increasing of blood pressure will enhance the oxygen supply to the muscle involved during .....

Correct Answer: A) Fight or flight response.

8. Which part of the ear assists with hearing and balance?

Correct Answer: D) All of the above.

9. A chronic disorder of the nervous system characterized by tremors, muscular weakness, rigidity, and a shuffling gait pattern:

Correct Answer: C) Parkinson's Disease.

10. The cytoplasmic extensions of a neuron which have a membrane specialized to receive stimuli are called

Correct Answer: C) Dendrites.

11. What type of cells provide support and nutrition in the nervous system, apart from transmitting impulses?

Correct Answer: C) Neuroglial cells.

12. Which of the following are effectors?

Correct Answer: B) Muscles & glands.

13. What kind of messages does the nervous system send?

Correct Answer: C) Electrical (impulses).

14. A neuron receives impulses at its

Correct Answer: A) Dendrites.

15. What do microglial cells monitor within the CNS?

Correct Answer: B) The health of nearby neurons.

16. Which part of the brain is responsible for reasoning, planning, and organizing?

Correct Answer: C) Frontal lobe.

17. A(n) ..... neuron carries nerve impulses from one neuron to another

Correct Answer: A) Inter.

18. What is the nerve cell that links the sensory & motor neurons called?

Correct Answer: C) Interneuron.

19. Insulin is produced by

Correct Answer: B) The pancreas.

20. What is the function of parietal lobe?

Correct Answer: B) It evaluates sensory input such as touch, pain, pressure, temperature and taste.