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