As a result, more sodium enters the principal cells and is available for the sodium-potassium pump, which pumps sodium out into the blood and pumps potassium into the cell, creating a relatively high potassium concentration in the principal cell.

因此，更多的钠进入主细胞，钠-钾泵得以将钠泵入血液，将钾泵入细胞，造成主细胞中相对高的钾浓度。