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