Which of the following statements does not accurately descri

Which of the following statements does not accurately describe the events involved in the propagation of an action potential? An initial influx of Na^+ through a small cluster of channels causes local depolarization of the membrane. Local depolarization causes nearby K^+ channels to open. Channels in depolarized regions of the membrane are inactivated until the resting membrane potential is reestablished. The outflow of K^+ through voltage gated K^+ channels helps bring the membrane back to its resting potential.

Solution

Membrane potential has three phases -

Depolarisation occur by influx of Na+ channels. It attains the potential is 40mV. Repolarisation occur by slow closure of Na+ channel and opening of K+ channels. In Hyperpolarization phase, some potassium channels remain open and sodium channels reset. This increase potassium efflux before the potassium channels close.

So the false statement is channels are inactivated until the resting membrane potential is reestlablished.