Neurons have a distinct structure. It allows a single neuron to send an impulse to distant body parts.

The nervous system is so much more than neurons. A unique set of supporting cells — neuroglia — helps the brain, spinal cord, and nerves.

Dendrites and axons are two types of processes in neurons. Dendrites carry electrical currents toward the cell body, and axons generate and send impulses away from the cell body and often release a neurotransmitter, which helps the brain communicate with other parts of the body, such as the spinal cord.