neurons that carry outgoing information from the brain and spinal cord to the muscles and glands

One function of the nervous system is to send information to and receive information from all parts of the body.

Myelin not only insulates the neuron, it also slows down the neural message helping with transmission of messages traveling down the axon.

neurons that carry incoming information from the sensory receptors to the brain and spinal cord

fiber attached to the soma, its job is to carry messages out to the other cells

cell body

The pathway from the retina to the brain that enables us to see is rods and cones to bipolar cells to ganglion cells to optic nerve.

Involved in preparing the body for behavior, particularly in response to stress, by activating the organs and the glands in the endocrine system. "fight or flight"

A long bundle of neurons that carries messages between the body and the brain and is responsible for very fast, lifesaving reflexes

microscopic fluid-filled space between the axon terminal of one cell and the dendrites or surface of the next cell

the part of the peripheral nervous system that controls the glands and the muscles of the internal organs (such as the heart). Its sympathetic division arouses; its parasympathetic division calms.

its stable, negative charge when the cell is inactive (-70mV)