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Unformatted text preview: the lungs filter the blood, making it 'oxygen-rich'. The filtered blood, nutrients and hormones are transported to other parts of your body via the arteries and at the capillary level cells get oxygen and nutrients 3. Removal of Waste Materials • In exchange for oxygen-rich blood, nutrients and hormones, your body cells give off waste materials including carbon dioxide, urea and excess water. • These waste materials are transported through your veins for elimination . 4. Protection • The white blood cells protect your body against infections and foreign bodies. Also the blood produces antibodies, that deactivate the harmful actions of antigens ....
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- Spring '08
- cardiovascular system, waste materials