| A | B |
|---|
| action potential | membrane potential of an active neuron |
| axon | nerve cell process that transmits impulses away from the cell body |
| central nervous system | brain and the spinal cord |
| dendrite | nerve cell process that transmits electrical impulses towards the cell body |
| glia | supporting cells of nervous tissue |
| membrane potential | the difference in electrical charge between the inside and outside of plasma membrane |
| myelin | white fatty substance around some nerve fibers |
| nerve | bundle of peripheral nerve fibers |
| neuron | nerve cell, including its axons and dendrites |
| reflex arc | nerve pathway to and from the central nervous system that forms the basis for a reflex |
| synapse | junction between adjacent neurons where nerve signals are transmitted |
