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

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"

tends to calm the body by slowing the heart and breathing and by allowing the body to recover from the activities that the sympathetic system causes "rest and digest" (part of ANS)

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.

A layer of fatty tissue segmentally encasing the fibers of many neurons; enables vastly greater transmission speed of neural impulses as the impulse hops from one node to the next.

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

The occipital lobes contain the visual cortex, where visual signals are processed.

The cerebrum is divided into two hemispheres that control opposite sides of the body.

what system consists of the brain and spinal cord

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

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

chemicals that transmit information from one neuron to another