Sodium ion influx is responsible for drifting the pacemaker potential to the threshold of approximately -40 mV.
Sodium Sodium influx drifts the membrane potential to threshold at appx -40 mV <br>
| Front | What ion is responsible for pacemaker potential reaching threshold? |
|---|---|
| Back | Sodium Sodium influx drifts the membrane potential to threshold at appx -40 mV |
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