| A | B |
|---|
| dendrite | carries impulse toward cell body |
| Schwann cell | produces myelin |
| myelin sheath | speeds up nerve impulse transmission |
| axon | transmits impulse away from cell body |
| telodendria | branched endings of the axon |
| neurilemma | necessary for regeneration of a damaged axon |
| cell body | controls the metabolism of the neuron |
| central nervous system | brain and spinal cord |
| peripheral nervous system | nerves connecting the CNS with other parts of the body |
| somatic nervous system | controls conscious, voluntary responses |
| autonomic nervous system | controls involuntary, unconscious responses |
| nerve | bundle of axons |
| ganglion | bundle of nerve cell bodies |
| afferent (sensory) neuron | carries impulses Toward the CNS |
| efferent (motor) neuron | carries impulses away from the CNS |
| interneuron | connects sensory and motor neurons |
| neuroglia | cells within the nervous system that do NOT transmit impulses |
| reflex | rapid automatic responses to a specific stimulus |
| sympathetic nervous system | controls responses during stressful situations |
| parasympathetic nervous system | controls responses during one's calm, everyday state |
