By:  Andreas Moritz
Posted:  December 7, 2011 — updated 2016
Book excerpt:  The Amazing Liver and Gallbladder Flush

The urinary system is an extremely important excretory system of the body. It consists of the following: two kidneys, which form and excrete urine; two ureters, which convey the urine from the kidneys to the urinary bladder; a urinary bladder, where urine collects and is temporarily stored; and a urethra, through which urine passes from the urinary bladder to the exterior of the body