Blood - All You Bleed is Blood

Blood - All You Bleed is Blood
Blood is a liquid that flows inside every inch of your body through a network of tubes called your circulatory system. Your blood carries fuel, food and messages inside your body. It also provides defense and removes waste. Your blood visits every single cell, making deliveries and taking out the trash. Blood cells trade oxygen — fuel that turns food into energy — for carbon dioxide, which the body doesn’t use. CO2 is sent to the lungs, exhaled, and eaten by trees. Your circulatory system is powered by a powerful pump -- your heart! SHOP THIS ORGAN »

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