Nervous System Quiz 656 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Indicate who first defined analyzers:

Correct Answer: C) I.P. Pavlov.

2. Main function:to process information received through the sensory systems and other parts of the body and to activate appropriate actions.

Correct Answer: A) Central Nervous System.

3. Voluntary muscles perform essential activities in your body, such as keeping your heart beating and helping with digestion.

Correct Answer: B) False.

4. Cell body

Correct Answer: C) Largest part of a typical neuron; contains the nucleus and much of the cytoplasm.

5. *In which of the following would the motor units have the greatest number of muscle fibers?

Correct Answer: D) *postural muscles of the back.

6. The relative refractory period is a period during the generation of an action potential during which .....

Correct Answer: D) Only an abnormally large stimulus will create an action potential.

7. Nerve supply to jaw occur by which nerve:

Correct Answer: B) Maxillary nerve.

8. Which type of CNS neuroglial cells produce cerebrospinal fluid to cushion the brain and spinal cord?

Correct Answer: C) Ependymal cells.

9. How many nerve cells are there in the body?

Correct Answer: B) Billions.

10. Chemical that causes the blood vessels around the infection to dilate (expand) so that more blood can flow to the infection

Correct Answer: D) Histamines.

11. From wrist to fingertip, what is the order of bones?

Correct Answer: A) Carpals, metacarpals, phalanges.

12. An adult has about ..... bones

Correct Answer: B) 206.

13. Ear drum.

Correct Answer: C) Tympanic Membrane.

14. What are the main parts central system?

Correct Answer: D) All of the above.

15. When you see something scary and you run for safety, you are using which systems?

Correct Answer: A) Both the CNS and PNS.

16. What is chronic brain disorder characterized by recurrent seizure activity?

Correct Answer: A) Epilepsy.

17. What is the MAIN function of neurons?

Correct Answer: B) To transmit signals throughout the nervous system.

18. Toilet

Correct Answer: C) Toilet.

19. The root word myel/o means:

Correct Answer: B) Spinal cord.

20. The dorsal roots of spinal nerves contain the fibres of .....

Correct Answer: A) Sensory neurones only.