Nervous System Quiz 41 (20 MCQs)

Quiz Instructions

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1. What is included in the peripheral nervous system?

Correct Answer: A) Somatic and autonomic nervous system.

2. The ..... nervous system controls unconscious activities.

Correct Answer: D) Autonomic.

3. What happens when an action potential is produced with a signal that is stronger than threshold?

Correct Answer: D) Action potential has same strength as threshold.

4. Form a protective covering around the spinal cord and central cavities within the brain

Correct Answer: A) Ependymal Cells.

5. Which structure is responsible for heart rate, blood pressure, swallowing, and vomiting?

Correct Answer: D) Spinal cord elongated.

6. High sensitivity requires ..... for a response to be generated as compared to low sensitivity.

Correct Answer: B) A lower level of stimulus.

7. How many bones are in the human body?

Correct Answer: B) 206.

8. ..... is commonly referred to as a stroke. It is the result of a blocked or ruptured blood vessel supplying a region of the brain.

Correct Answer: A) CVA.

9. Which spinal nerves do not have a plexus

Correct Answer: B) Thoracic.

10. The inside of the membrane becomes less negative

Correct Answer: D) Depolarization.

11. The ear is segmented into how many segments

Correct Answer: C) 3.

12. What do chemoreceptors sense

Correct Answer: A) Chemical.

13. What are the 3 divisions of the brain?

Correct Answer: D) Brain stem, cerebellum, cerebrum.

14. Which division is referred to as the rest and digest?

Correct Answer: C) Parasympathetic Division.

15. Humans detect their external environment with

Correct Answer: A) Their 5 senses.

16. In a motor neurone there is

Correct Answer: C) An axon but no dendron.

17. The central nervous system is made up of what parts?

Correct Answer: A) Brain and spinal cord.

18. What causes a stroke?

Correct Answer: B) Lack of blood supply and oxygen.

19. The image is upside down in the .....

Correct Answer: C) Retina.

20. The minimal stimulus needed to elicit an action potential in a neuron is called the ..... potential

Correct Answer: C) Threshold.