Chapter Objectives

After studying the material in this chapter, you should:

Know the distinction between the reticular hypothesis and the neuron hypothesis, which has prevailed and why.

Know the major components of the neuron.

Be able to define glia and its function.

Know how neurons communicate and what a neurotransmitter is; know how drugs affect neurotransmitters.

Know how the study of Aplysia californica has aided in the understanding of the neural basis of learning.

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