The prepotential is due to a gradual influx of sodium ions right up until the threshold is arrived at followed by a quick depolarisation and repolarisation. The prepotential accounts with the membrane reaching threshold and initiates the spontaneous depolarisation and contraction from the cell; there is not any resting https://donaldz567qpl8.idblogmaker.com/35826631/new-step-by-step-map-for-4200-loan