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Nervous System Quiz 49 (20 MCQs)

Quiz Instructions

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1. Action potentials are always propagated along an axon at the same ..... but ..... can vary depending on the strength of the stimulus.
2. Which type of nervous system is in charge of voluntary actions (things that are under your control)?
3. What is #6 in the diagram?
4. The nerve impulse travels from dendrite $\rightarrow$ cell body $\rightarrow$ axon.
5. The buildup of depolarization when EPSPs arrive at several places on the neuron is called ..... summation.
6. Short process of a neuron
7. What is the charge of a resting neuron?
8. How many parts can the nervous system be divided into?
9. What is the fatty covering that insulates the axon called?
10. Mark decides to take a walk barefooted on the beach at noon. He jumps when his feet comes into contact with the hot sand. In what sequence are the neurones activated to cause this reaction?
11. Sudden surge of electrical activity in the brain that affects how a person feels or acts for a short time
12. Impulse conduction is fastest in neurons that are
13. Part of the bone that manufactures red blood cell.
14. Brain controls all our reflex actions
15. ..... is a progressive degenerative disease of the basal nuclei that affects the dopamine-secreting pathways.
16. The Spinal Cord is the pathway for the messages sent by the brain to the body, and from the body to the brain.
17. When is the potassium channel open?
18. The part of the neuron that receives messages from other neurons
19. Serious injury to the spinal cord can lead to paralysis.
20. Which lobe of the brain transmits visual signals?
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