So on the basil lateral side, we have this sodium potassium ATPase pump. And what this pump does is it uses an ATP molecule. It breaks down ATP to ATP. In the process, it pumps three sodium ions against its electrochemical gradient to the outside of the cell, and it brings two of these potassium ions into the cell. So this is the same exact pump that was used to basically transport the glucose molecules into our cell. Now, as this takes place, the concentration of sodium inside the side of plasma decreases.