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The autonomic nervous system contains two branches called the

(20 pt') - question #218

The fatty layer of tissue that gives many nerves a whitish color is called

(20 pt') - question #226

The part of the neuron that specializes in receiving messages from other neurons is the

(20 pt') - question #198

The channels that transport sodium and potassium within the axon are called

(20 pt') - question #200

Many of the chemicals that affect the brain operate by

(20 pt') - question #229