Urinary System: Human Anatomy Online
The kidneys, which maintain the constancy of fluids in our internal environment, are perfect examples of homeostatic organs. These organs function like a water purification plan that keeps a city's water drinkable and disposes of its wastes.
[http://occ.awlonline.com/]
Urinary System: Your Urinary System
A look at how it works, the causes of problems, detection of problems, some of the disorders, where to go for help and further resources.
[http://kidney.niddk.nih.gov/]
Urinary System: Inner Body
The structure of the urinary tract includes: the kidneys, two ureters, (tubes leading from the kidneys to the bladder,) and the urethra, a tube leading from the bladder to the exterior of the body. The urinary tract is a little like a plumbing system, with special pipes that allow water and salts to flow through them.
[http://www.innerbody.com/]
