It and eventually ends up in our urine and is released by our body. And these two methods are as follows. Number one, that substance can be filtered through our glomerulus and then not reabsorbed by our tubules. And what that means is that substance, because it is filtered and not reabsorbed, it will end up being in the urine that is released by the body. Now the second method is the following. It is not filtered through our glomerilus, but as it travels through the Ethernet arterial and eventually ends up in the periobular capillaries, it can be secreted by those capillaries into the tubules and then it ends up in our urine.