Twitch contraction
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Hi-Please explain what the refractory period is and when it happens-before or after relaxation? Thanks.
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The refractory period is the period of time during which an excitable cell, such as a muscle cell, cannot generate another action potential. It usually lasts about 1-2 msec.
It is divided into two parts, the absolute refractory period and the relative refractory period.
The ...
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