The Body's Highway System Your circulatory system contains 60,000 miles of blood vessels. That's enough to wrap around Earth twice. Capillaries make up 95% of this network. They're thinner than human hair. Blood travels this entire distance in one minute. Your heart pumps 2,000 gallons daily through these highways. Every cell sits within touching distance of a blood vessel.
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Human BodyMar 22, 2026
The Body's Highway System
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