Matching Pairs Excretory System MatchOnline version Test your knowledge of the human excretory system with this matching pairs game! by Rachel Jackson 1 Nephron 2 Sweat 3 Urinary System 4 Liver 5 Ureters 6 Urine 7 Sphincter 8 Bladder 9 Urethra 10 Kidneys 11 Excretion 12 Skin Stores urine Muscle that controls the release of urine Processes waste products from cell metabolism into safer substances Eliminates waste from the body Transport urine from kidneys to bladder Liquid waste excreted by the kidneys Salty waste excreted by the skin Filter waste from blood Functional unit of the kidney Carries urine from bladder to outside the body Process of removing wastes from the body Largest organ in the human body