And these are eventually reabsorbed by the peritubular cavities found within and around our nephron. Now, the next type of protein channel that we have to consider is the calcium channel. So the calcium channel, just like this protein, is found on the apical side, on the side that points towards our lumen. And this allows the reabsorption the movement of calcium from the lumen into the cell and eventually into our interstituency. So we see that the three things that are reabsorbed inside the distal convolute tubule is calcium, it's chloride and its sodium. Now, on the basil lateral side of the membrane, we also have our sodium calcium cotransporter protein.