The+Main+Components

=__**The Main Components Of The Excretory System**__=

· Kidneys The kidneys continually filter blood plasma removing excess water, ions, and urea. The waste produced from the kidneys is called urine.

· Bladder The urine filtered from the kidneys is stored in the bladder until it is full. When this happens the message is sent to your brain to relax a sphincter muscle allowing the urine to pass out the urethra.

· Skin The skin excretes by sweating. Sweating is a way of getting rid of water and cooling the body.

· Liver Blood passes through the liver to remove toxins and waste products from the blood. The liver also stores nutrients and helps the body digest food by making bile which is stored in the gallbladder.