Relier Pairs The urinary systemVersion en ligne The urinary system par Miguel Angel Preciado Lopez 1 Which area does urine pass through when it leaves the bladder? 2 What is the function of the ureters? 3 What is the difference in function between renal arteries and renal veins? 4 What do the kidneys do? 5 What happens when the bladder is full? They remove waste products and water to create urine. The ureters take urine from the kidneys to the bladder. The renal arteries carry blood to the kidneys to be cleaned while renal veins take the clean blood away. It sends a message to the brain to tell us to urinate. It passes through the urethra.