Depolarization happens when the threshold potential is reached, opening more sodium channels and causing rapid sodium influx.
Depolarization occurs when the membrane reaches a threshold potential (-55mV), causing more sodium channels to open and rapid sodium ion influx.
| Front | Depolarisation (action potential formation) |
|---|---|
| Back | If potential difference reaches threshold value (-55mV) more sodium ion channels open and more sodium ions diffuse rapidly into neurone |
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