Now, after about two milliseconds from where everything essentially begun, what begins to happen is as a result of this drop in voltage, these voltage gated potassium ions will begin to close and some of them will also become inactivated in the same method that we discussed here. So the ball will basically enter that port section that will close that channel and will prevent the movement of these potassium potassium ions. And so what happens is, as both of these are closed and inactivated, we'll see that eventually that voltage difference will approach that resting membrane potential. In fact, the sodium potassium Atph pump actually is also used to help return this voltage to its original resting membrane potential. And that happens around this section. So, once again, let's summarize how these two types of ion channels, the voltage gated ion channels and the ligand gated ion channels actually work together.