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13.17: Nerve Impulses

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

action potential

Reversal of electrical charge across the membrane of a resting neuron that travels down the axon of the neuron as a nerve impulse.

nerve impulse

Electrical signal transmitted by the nervous system.

neurotransmitter

Chemical that carries a nerve impulse from one nerve to another at a synapse.

resting potential

Difference in electrical charge across the plasma membrane of a neuron that is not actively transmitting a nerve impulse.

sodium-potassium pump

Active transport protein; exchanges sodium ions for potassium ions across the plasma membrane of animal cells.

synapse

Junction where an axon terminal meets another cell.

synaptic cleft

Space between the axon terminals of one cell and the receptors of the next cell.

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Difficulty Level:
At Grade
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Date Created:
Feb 24, 2012
Last Modified:
Aug 28, 2016
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SCI.BIO.921.2.L.1
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