| A | B |
|---|
| Action potential | Membrane potential of an active nueron |
| Axon | Nerve cell process that transmits impulses away from the cell body |
| Central Nervous System | Brain and spinal cord |
| Dendrite | Nerve cell process that transmits electrical signals toward 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 found in the myelin sheath around some nerve fibers |
| nerve | bundle of peripheral nerve fibers |
| neuron | nerve cell, including its axons and dendrites |
| Peripheral nervous system | nerves connecting the brain and spinal cord to other parts of the body |
| Reflex arc | Nerve pathway to and from the CNS that forms the basis for a reflex |
| Synapse | Junction between adjacent nuerons where nerve signals are transmitted |
