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alexgriva [62]
3 years ago
10

During the action potential of a neuron, which ion is primarily crossing the membrane during the depolarization phase, and in wh

ich direction is the ion moving?
Biology
1 answer:
iragen [17]3 years ago
4 0
The answer is Na + is entering the cell and the K + is leaving, during the depolarization phase of the action potential open Na + channels allow Na + ions to diffuse into the cell. This inward movement of positive charge makes the membrane potential more positive. The depolarization phase is a positive response sequence where open Na + channels cause depolarization which in re-occurrence causes more voltage gated Na+ channels to open. 
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