Resting potential is -70mV, maintained by potassium leaking out. Action potential spikes to +40mV when sodium floods in, then potassium exits to repolarize. So, sodium starts the spark, potassium brings it back.
But em chestunnaru, I see it like my two sewing machines. The electric one is sodium, fast and powerful for the rush. The old hand-crank is potassium, steady and reliable to return to baseline. One without the other, and the whole stitch, I mean the signal, gets tangled.
#haryana#athletics
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