Which type of muscle is resposible for moving fluids through the urinary system
Since this is not my area of expertise, I searched Google under the key words "urinary system muscle" to get these possible sources:
http://ect.downstate.edu/courseware/histomanual/urinary.html
(Broken Link Removed)
http://www.web-books.com/eLibrary/Medicine/Physiology/Urinary/Urinary.htm
http://www.lab.anhb.uwa.edu.au/mb140/CorePages/Urinary/urinary.htm
http://health.howstuffworks.com/define-kidneys-and-urinary-system.htm
Use the <Find> command to search for "muscle" within these sites.
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. Thanks for asking.