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neuron
| Term | Definition |
|---|---|
| central nervous system | the brain and spinal cord collectively |
| synaptic cleft | a tiny gap that separates two neurons |
| ganglion | a collection of nerve cell bodies found outside the central nervous system |
| interneuron | neuron processes running sensory and motor neurons |
| tract | neuron processes running through the CNS |
| nuclei | collections of nerve cell bodies inside the CNS |
| efferent neuron | neuron that conducts impulses away from the CNS to muscles and glands |
| afferent neuron | neuron that conducts impulses toward the CNS from the body periphery |
| neurotransmitters | chemicals released by axon terminals |
| neuroglia | specialized supporting cells of the nervous system |