A few words of thanks would be greatly appreciated.

Kidney function - Definition


The kidney plays a role in blood filtration and avoidance of unnecessary substances, useless for the functioning of the body which results in the production of urine. It also enables the control of the levels of water in the body, but also the levels of ions such as sodium and potassium. In the renal glomeruli, which correspond to an accumulation of very small blood vessels, a sort of filter will enable the diffusion of water and other components of the plasma (the liquid part of the blood). This primitive urine will then go through a sort of tube, the tubule in which different portions will be more or less permeable for certain substances, which can either continue their journey or be reabsorbed and returned to the blood. All these phenomena are very complex in nature and regulation and enable normal operation, a close control of a large part of the body fluids.