Caption: A graph illustrates how an action potential remains at +30 mv regardless of the strength of the threshold stimulus. The action potential is all-or-none. Once generated, the amplitude does not vary. Any threshold stimulus will produce the same action potential of about positive 30 millivolts, regardless of strength of stimulus. (w titles).

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Keywords: action potential, falling, nerve cell, nerve cell membrane, neuron, potassium channel, recovery, resting potential, rising, sodium channel, stimulus, synapse, threshold, undershoot

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Action Potential

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Duration: 00:00:19.22

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