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Nervous System Quiz 435 (20 MCQs)

Quiz Instructions

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1. This is the communication system of the body, carries messages throughout the body.
2. Once released, neurotransmitter molecules typically produce signals in postsynaptic neurons by
3. PNS full name
4. This nerve controls heart rate
5. Contains cell organelles and a nucleus
6. True or false:the brain is required for reflexes.
7. The largest and most prominent region of the human brain
8. Which of the following is part of the diencephalon?
9. Combining form that means to cut off; cut short; faint
10. Which type of cell is being described?-Most abundant CNS neuroglia-Support and brace the neurons and anchor them to their supply lines (capillaries)-Control the chemical environment around the neurons by "mopping up" excess K+ ions and recapturing and recycling neurotransmitters.-Named for their shape: "star cells"
11. The human body has ..... pairs of cranial nerves.
12. The layer of light-sensitive cells at the back of the eye. The ..... detects images focused by the cornea and the lens and is connected to the brain by the optic nerve.
13. The opaque outer covering that protects the eye, also known as the white of the eye:
14. Masses of myelinated nerve fibers would appear .....
15. Another name for motor neurons
16. The central nervous system is comprised of all the neurons in the brain and the .....
17. What is the primary role of gray matter in the brain?
18. A nerve cell.
19. Which of the following wrap around axons to form a myelin sheath
20. Nerve cells that carry impulses from the senses to the brain and spinal cord are called .....
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