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reflex

(Encyclopedia)reflex: see nervous system.

gray matter

(Encyclopedia)gray matter: see nervous system. ...

Schwann cell

(Encyclopedia)Schwann cell: see nervous system. ...

norepinephrine

(Encyclopedia)norepinephrine nôrˌĕpīnĕfˈrən [key], a neurotransmitter in the catecholamine family that mediates chemical communication in the sympathetic nervous system, a branch of the autonomic nervous sys...

spastic paralysis

(Encyclopedia)spastic paralysis, form of paralysis in which the part of the nervous system that controls coordinated movement of the voluntary muscles is disabled. In spastic paralysis the nerves controlling muscle...

Jelliffe, Smith Ely

(Encyclopedia)Jelliffe, Smith Ely jĕˈlĭf [key], 1866–1945, American neurologist and psychiatrist, b. New York City, M.D. Columbia, 1889. He was consultant at Manhattan State Hospital and at Kings Park State Ho...

neuron

(Encyclopedia)neuron, specialized cell in animals that, as a unit of the nervous system, carries information by receiving and transmitting electrical impulses. ...

dendrite

(Encyclopedia)dendrite: see nervous system; synapse. ...

axon

(Encyclopedia)axon: see nervous system; synapse. ...

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