|The urinary system is responsible
for water and electrolyte balance, and for removing a variety of
metabolic wastes from the body. The kidneys are the main excretory
organs and their function is critical to maintaining the internal
environment. Waste products are taken from the kidneys as urine by
the ureters and temporarily stored in the urinary bladder. The
urethra leads from the urinary bladder to expel waste products.