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