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1. Provide oxygenated blood to the body's tissues/cells
2. Provide return of deoxygenated blood back to the heart and then lungs for reoxygenation.
3. Provide a conduit for nutrients to the tissues/cells
There are many more functions, but these are three of the main ones.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoDelivering needed materials, Removing waste products, fighting disease.
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