(Kelly of the Clue Crew shows an anatomical diagram on the monitor.)  It's the 2-word term for the continuous anatomical system that contains the kidneys, the ureters, the bladder & the urethra
[DOC] [TLE] renal system | anatomy | Britannica.com [PAR] In humans, organ system that includes the kidneys, where urine is produced, and 
the ... or urinary, system resembles those of other mammalian species, but it has 
its ...