The correct order of the urine flow : Kidney, Ureter, Bladder, Urethra.
Kidneys are two bean-shaped organs that filter waste from the blood and produce urine.
Ureter is the tube connecting the Kidney to the Bladder.
Bladder is balloon-shaped muscle or sac that serves as the storage for urine.
Urethra is the tube that carries the urine from the Bladder to the outside of the body.
