Now, because we have 625 going in and 125 comes out of this side, then that means this minus this or 500 blood volume actually travels through the efair and arterial and into the peritubial capillaries every single minute. Now, the filtration rate of 125 ML/minute is also known as the glomerul filtration rate. So this is the normal filtration rate of the glomerulus and this is the normal value for the renal plasma flow. Now recall, as we mentioned earlier, within our tubular section of the nephron, we have reabsorption and secretion taking place between our peritubular capillaries. So certain substances that are actually filtered across and into the Bowman's capsule are reabsorbed back by that body. And this includes things like amino acids and glucose, sodium chloride, as well as many other things.