Our Bodies - The Excretory System
The Excretory System removes waste materials from the body. some of the waste is poisonous. Waste is filtered out of the blood by the kidneys and passes out of the body as urine.The Kidneys are a pair of organs that remove water and other waste products from the blood. These waste products pass through the bladder and leave the body in urine.
SEE : Our Bodies - Human Organ Systems
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