Special types of glial cells generate a protective fatty substance called

The sac-like structures that are found at the end of a neuron's axon and that contain neurotransmitters are called

When a neuron is at rest, the ions inside the cell are mostly _____ and the ions outside the cell are mostly _____.

Neuroplasticity is

The brain is primarily comprised of two different kinds of cells. They are neurons and

In the disease _____, the myelin sheath is destroyed.

Messages from other cells are received by the

Which of the following parts of a neuron work most like a telephone wire that carries information away from a telephone?