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. And let's take a look at this diagram. So, in this section, we basically have the action of that acetylcholine receptor. So as it is opened up as a result of the binding of that ligand, the acetylcholine, it causes an increase in that voltage value.