So we also have this section known as the juxtaglomerol apparatus. And this is nothing more than a collection of three types of cells that are involved in controlling and regulating the process of filtration and movement of the blood plasma through our renal corpus cell. So we have the macula densa, which are the cells found on this side of the distal convolute. So this is a cross section of the distal convolute. It's coming out of the board and bringing blood this way. Now, these cells are the granular cells, also known as the juxtaglomeral cells, and these are the agranial cells, also known as the laces cells.