The question is, how exactly will the adjacent section of the cell membrane be influenced by the influx of the sodium ions into the cell? So it turns out that the increase of the positive charge inside the cell where the stimulus actually took place will cause an increase in the positive charge found in the region right next to where the stimulus actually took place. So what that means is, as we have a build up of sodium ions in this region, that will influence the charge value on the region right next to it. And so this will begin to become more positively charged. And remember, as the inside of the cell initially becomes more positively charged, that will begin to stimulate the opening of the sodium ion channels, the sodium voltage gated channels. So what that basically means is we stimulate the NA channels to open up adjacent to where the stimulus actually took place.