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A marathon runner's blood, with its distinct headed cells, leaves their body at an impressive velocity, each heading towards oxygenated tissues rapidly. They're crucial for quick response, swiftly delivering nutrients and fighting off infections.
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Headed blood cells are small, round, and crucial for oxygen transport; as they rush through arteries, they swiftly navigate capillaries to deliver life-sustaining oxygen to body tissues. After completing their journey, these cells either return to the heart or exit the body, ensuring every cell gets its daily dose of energy.