The parts to the kidney transports all the toxins into the kidney to be cleaned so the toxins do not get into the body without being filtered thru. It will cause kidney failure over a little time if the kidneys falter. Just remember you can live with one kidney. If you are having problems now see a urologist as soon as you can.
I don't know the parts but I know that it filters waste out of your blood. That's all I can say.