So the real medulla is the inner portion of the kidney and it basically contains several important structures of the nephron, just like the cortex does. The medulla contains a structure known as the Loop of Henley. It also contains the vase orcta, which is a bed of capillaries, as we'll see in just a moment. And it contains our collecting ducts. So now that we discussed these three structures, we are ready to define what a nephron actually looks like. So the nephron, if we take the nephron shown in purple, we zoom in on the nephron and we place it right side up.