The part of the neuron that contains the nucleus; the cell's life support system.

A layer of fatty tissue that insulates the axon and speeds their impulse.

A neuron extension that passes messages through its branches to other neurons or to muscles or glands.

The bushy, branching extension of a neuron that receives and integrates messages, conducting impulses toward the cell body.

A neurotransmitters reabsorbtion by the sending neuron.

Cells in the nervous system that support, nourish, and protect neurons; they also play a role in learning, thinking, and memory.

The level of stimulation required to trigger a neural impulse.

A neurons reaction of either firing (with a full length response) or not firing.

A neural impulse; a brief electrical charge that travels down an axon.

In neural processing, a brief resting pause that occurs after a neuron has fired.