Relacionar Columnas Excretory systemVersión en línea Match the ideas por Ana Blas Pérez 1 Kidneys 2 Bladder 3 Ureters 4 Urethra They clean the blood by filtering it to take out waste. Urine from kidneys travels through them to the bladder. It is a tube. The urine leaves the body trough it. It stores the urine.