Download Nervous System Questions

Nervous System Chapter 11 Questions
1. What are the 3 functions of the nervous system?
2. Outline the organization of the nervous system
3. Which neuroglias form the myelin sheath?
4. What is a neuron?
5. A cluster of cell bodies in the C.N.S. is called _____?
6. A cluster of cell bodies in the P.N.S. is called _____?
7. What is white matter? Gray matter?
8. Differentiate between afferent and efferent neurons.
9. What causes transmitter gated and voltage gated channels to open?
10. What is an electrochemical gradient?
11. What is the resting membrane potential and why is the membrane polarized?
12. Differentiate between depolarization, hyperpolarization, and repolarization.
13. What is the state (open or closed) of sodium and potassium channels during
resting state, depolarization, repolarization, and after hyperpolarization?
14. How is an action potential propagated?
15. What is the all-or-nothing phenomenon?
16. What variables influence the conduction velocity of a neuron?
17. Describe the events of the propagation of an action potential through a synapse
to the next dendrite.