Nervous System Quiz 1029 (20 MCQs)

Quiz Instructions

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1. Which neuron structure has a short single process leaving the cell body?

Correct Answer: B) Unipolar.

2. Area of the temporal lobe involved in language comprehension.

Correct Answer: B) Wernicke's Area.

3. Reflexes are

Correct Answer: A) Involuntary.

4. What are meninges?

Correct Answer: B) Layers of tissue surrounding the brain.

5. The organs in the nervous system are .....

Correct Answer: B) The brain and spinal cord.

6. What is the name of the insulating layer that surrounds the axon of a neuron?

Correct Answer: D) Myelin sheath.

7. Carry information from sense organs to the spinal cord and the brain.

Correct Answer: A) Sensory neurons.

8. Unmyelinated fibers are called ..... matter whereas myelinated fibers are called ..... matter

Correct Answer: A) Gray; white.

9. What is an electrical charge across the membrane of a resting neuron?

Correct Answer: C) Resting potential.

10. They slow heartbeat.

Correct Answer: B) Parasympathetic nerves.

11. Neurotransmitters are stored in which structure of the neuron?

Correct Answer: C) Axon terminals.

12. Which part of the brain stem is responsible for relaying messages and regulating breathing?

Correct Answer: B) Pons.

13. The autonomic nervous system regulates all but

Correct Answer: D) Voluntary movement.

14. Phagocytize bacterial cells

Correct Answer: A) Microglial.

15. ..... is an inflammation of the brain coverings.

Correct Answer: B) Meningitis.

16. How can the speed of action potential propagation (i.e. sending) be increased?

Correct Answer: A) Myelin allows the AP to jump from Node of Ranvier to the next Node of Ranvier.

17. This contains a cell's DNA.

Correct Answer: B) Nucleus.

18. When a person is frightened, adrenalin is released by the adrenal glands. What are the effects of the adrenalin?

Correct Answer: D) Breathing rate increased; heart beat rate increased.

19. Sense of smell

Correct Answer: A) I.

20. ..... are branched extensions off soma that receive chemical signals from a sensory cell or another neuron

Correct Answer: A) Dendrites.