An absolute refractory period occurs when a nerve fiber can be restimulated only by a much stronger stimulus than the initial stimulus.

Name: An absolute refractory period occurs when a nerve fiber can be restimulated only by a much stronger stimulus than the initial stimulus.
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An absolute refractory period occurs when a nerve fiber cannot be restimulated, regardless of the strength of the stimulus, because the sodium channels are inactivated.

An Absolute Refractory Period Occurs When a Nerve Fiber Can