Relacionar Columnas The urinary systemVersión en línea The urinary system por Miguel Angel Preciado Lopez 1 What do the kidneys do? 2 What happens when the bladder is full? 3 What is the difference in function between renal arteries and renal veins? 4 Which area does urine pass through when it leaves the bladder? 5 What is the function of the ureters? 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. They remove waste products and water to create urine. It sends a message to the brain to tell us to urinate. It passes through the urethra.