The nephron is the basic unit of structure of the kidneys. And each one of our kidneys contains over 1 million of these individual nephrons. Now, the function of the nephron is to basically filter our blood plasma. It secretes the waste products into our urine, which is eventually excreted by our body. Now, in this lecture, we're going to focus focus on the structure of the nephron. So let's begin by taking a look at this diagram that describes what an individual nephron actually looks like.