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 Urine 3 Sweat 4 Ureters 5 Excretion 6 Skin 7 Urinary System 8 Bladder 9 Sphincter 10 Kidneys 11 Urethra 12 Liver Process of removing wastes from the body Processes waste products from cell metabolism into safer substances Muscle that controls the release of urine Filter waste from blood Largest organ in the human body Carries urine from bladder to outside the body Transport urine from kidneys to bladder Salty waste excreted by the skin Functional unit of the kidney Eliminates waste from the body Liquid waste excreted by the kidneys Stores urine