And what this system basically does is it increases the blood volume, it increases the blood pressure inside our blood vessels. So let's discuss how this pathway actually works. And let's begin by discussing a portion of the kidney known as the Juxtaglomerol apparatus. So this is basically a structure that consists of three different types of cells. Now, two of these different types of cells are the maculadens of cells and the juxtaplamelmerolar cells. And these two different types of cells basically have their own unique function.