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Blood flows through the body in a system of tubes called blood vessels. The heart acts like a pump, pushing blood out into the arteries, which carry it away from the heart to different parts of the body. As blood travels, it delivers oxygen and nutrients to the cells and picks up waste products. TheRead more
Blood flows through the body in a system of tubes called blood vessels. The heart acts like a pump, pushing blood out into the arteries, which carry it away from the heart to different parts of the body. As blood travels, it delivers oxygen and nutrients to the cells and picks up waste products. Then, the blood returns to the heart through veins, completing the circuit. This whole process is called circulation, and it keeps our bodies healthy and functioning properly!
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