So this ball domain enters this section and it blocks that pore as shown in this particular diagram. And so now the sodium ion channels, the sodium ions can no longer move into the cell at the same moment in time. So in this region, we have the quickening of the opening process of these potassium voltage gated on channels, and so they begin to open up. So essentially the same exact thing happens as in this particular case. These paddle domains basically begin to orient themselves as a result of that depolarization of the membrane. And so, when this orients upward, that opens and winds the port at the bottom.