1) What's this? a) It's an elastic bag that stores the urine for a short time. b) It's a bag in our stomach c) It filters blood 2) What is the function of the kidneys? a) They are used to oxygenate blood b) They filter the blood and produce urine. c) They are part of the circulatory system 3) What is the name of this system? a) Digestive b) Respiratory c) Excretory 4) Who transport urine from the kidneys to the bladder? a) The two ureters b) The three ureters c) The urethra 5) Urine leaves the body through the urethra a) True b) False

EXCRETORY SYSTEM

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