"U" KNOW IT
'(<a href="http://www.j-archive.com/media/2007-11-22_DJ_18.jpg" target="_blank">Kelly of the Clue Crew shows an anatomical diagram on the monitor.</a>)  It's the 2-word term for the continuous anatomical system that contains the kidneys, the ureters, the bladder & the urethra'
the urinary system