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Nervous System

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Across
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____ stem- connects brain to spinal chord
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_____ potential- reversal of charges across the cell membrane of a neuron as an impulse passes
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Short branched extensions that carry impulses toward the cell body
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Contained in sacs in axon terminals; released to cause stimulus in the next cell
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____ 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
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Long fiber that carries impulses towards the cell body
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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
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Largest part of the brain; responsible for voluntary and educated actions
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Second largest part of the brain; located at the back of the skull; coordinates balance and movement
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_____ sheath - insulating membrane around axon; keeps impulses moving along the axon making it more efficient
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Central nervous system
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____ potential- electrical charge across the cell membrane of a neuron