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ackman678
2016-10-17 11:19:27 -07:00
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2016-10-03-lecture04.md
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@@ -464,6 +464,11 @@ Active and Passive current flow.
Note:
Might here in other classes, especially human physiology about absolute and relative refractory periods.
Refractory period we've been discussing here is mostly the absolute refractory period-- due to Na+ channel inactivation.
Relative refractory period is the transient hyperpolarization during the undershoot when potassium conductance is still greater than normal-- when K+ conductance returns to resting value the relative refractory period is over. Until this time, a greater secondary depolarizing stimulus will be required to reach AP threshold.
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