Terms : Hide Images
| 15479159488 | neuron | a nerve cell; the basic building block of the nervous system | 0 | |
| 15479159489 | dendrites | a neuron's bushy, branching extensions that receive messages and conduct impulses toward the cell body |  | 1 |
| 15479159490 | cell body | the cell's life support center (part that the dendrites branch off of!) | 2 | |
| 15479159491 | axon | the neuron extension that passes messages through its branches to other neurons or to muscles or glands (line that passes through the clear tube and connects the neurons) | 3 | |
| 15479159492 | myelin sheath | a fatty tissue layer segmentally encasing the axons of some neurons; enables vastly greater transmission speed as neural impulses hop from one node to the next (clear tubey/bubble parts that encases the axon) |  | 4 |
| 15479159493 | nodes of the ranvier | periodic gaps in the myelin sheath on the axon serves to facilitate the rapid conduction of nerve impulses. |  | 5 |
| 15479159494 | synaptic vesicles | membrane-bounded compartments in which synthesized neurotransmitters are kept found in the terminal buttons |  | 6 |
| 15479159495 | terminal buttons | the branched end of the axon that contains neurotransmitters |  | 7 |
| 15479159496 | dendrite receptors | a site on the receiving neurons dendrite in which neurotransmitters dock to continue the message | 8 | |
| 15479159497 | positive ions (resting potential) | on the outside of the axon | 9 | |
| 15479159498 | negative ions | on the inside of the axon | 10 | |
| 15479159499 | neurotransmitters | chemical messengers that cross the synaptic gaps between neurons |  | 11 |
| 15532964353 | post synaptic potential | Voltage change at a receptor site on a postsynaptic cell membrane (NOT ALL OR NONE LAW. Can transmit different amounts/ conduct different voltages). | 12 | |
| 15532969351 | action potential | a neural impulse; a brief electrical charge that travels down an axon | 13 | |
| 15532973127 | resting potential | the negatively charged state of a neuron when a message IS NOT being transmitted. | 14 |
