So, because we established a sodium concentration gradient in which we have less sodium inside, the sodium will move down its electrochemical gradient from the outside to the inside of the cell. And at the same time, because this is a co transport protein membrane, it will allow the movement of other ions as well. So for every one sodium that is moved inside the cell down the electrochemical gradient, our single potassium will be moved and two chlorides will also be moved. So let's take a look at the following diagram which summarizes what takes place within the thick ascending loop of Henley. So what it does is it uses ATP to establish an electrochemical gradient that allows the movement of sodium, potassium and chloride from the lumen, from the lumen of aristic ascending lupifamily into the cells, and eventually out of the basil lateral side and into the interstituum of our loop of Henley into the surrounding tissue. And this concentrates increases the solute concentration found in the interstituent.