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    Hey everyone. During the action potential, the hyperpolarisation gives a membrane p.d. that is more negative than the resting potential. I've been told that the Na+/K+ pump restores the resting potential. What I don't understand is, if that the Na+/K+ pump removes 3 sodium ions and bring in 2 potassium ions, shouldn't there be a net loss of charge (which is how the negative resting potential forms) meaning shouldn't the membrane potential become even more negative.

    I know that there's other channels involved, but I don't understand the role of the Na+/K+ pump. Also, is there a name for that time period?
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Updated: May 13, 2015


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