So we see that the nephron actually encompasses both the cortex and the medulla of our kidney is found in the cortex as well as in aramidoula. So let's begin with our initial point on the nephron, which is found in the cortex. Now recall that the renal artery brings the blood to our kidney. The renal artery divides and subdivides and eventually divides into very tiny blood vessels known as the African arterios. And these are the blood vessels that carry not only the oxygenated and the nutrient filled blood, but also the blood that contain the waste products that must be excreted. And it brings that blood to our nephron.