Your kidneys are highly specialized recycling machines
The kidneys are located near the back of the body, just below the rib cage. The right kidney is located below the liver, so it's a little lower than the left one.
   
Kidneys are bean-shaped and slightly larger than a tennis ball.
   
During the filtering of the blood, concentrated urine is formed. This contains waste products and excess water. It is transported from the kidneys to the bladder through tubes that are called ureters.

This text is replaced by the Flash movie.