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Nervous System

Across
____ stem- connects brain to spinal chord
_____ potential- reversal of charges across the cell membrane of a neuron as an impulse passes
Short branched extensions that carry impulses toward the cell body
Contained in sacs in axon terminals; released to cause stimulus in the next cell
____ Matter- contains mostly nerve cell bodies and un-myelinated fibers. Gray area of the central nervous system; contains neuronal cell bodies and their dendrites
Down
Long fiber that carries impulses towards the cell body
the structural units of the nervous system, highly specialized cells that conduct messages in the form of nerve impulses from one part of the body to another
Largest part of the brain; responsible for voluntary and educated actions
Second largest part of the brain; located at the back of the skull; coordinates balance and movement
_____ sheath - insulating membrane around axon; keeps impulses moving along the axon making it more efficient
Central nervous system
____ potential- electrical charge across the cell membrane of a neuron