After you have studied this chapter, you should be able to:

1. Explain the general functions of the nervous system.

2. Describe the general structure of a neuron.

3. Explain how neurons are classified.

4. Name four types of neuroglial cells and describe the functions of each.

5. Explain how an injured nerve fiber may regenerate.

6. Explain how a membrane becomes polarized.

7. Describe the events that lead to the conduction of a nerve impulse.

8. Explain how a nerve impulse is transmitted from one neuron to another.

9. Distinguish between excitatory and inhibitory postsynaptic potentials.

10. Explain two ways impulses are processed in neuronal pools.

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