Respuesta :

The organs - Kidneys, Ureters, Bladder, Urethra, Sphincter muscles, and nerves- filters waste from the bloodstream and removes the waste from the body. Your kidneys circulate blood and separate waste, so it can be released. 
mexicanqueen
1) excretion of wastes
2) regulation of blood pH
3) regulation of water balance
hope this helped :)