Studies of the superfluid aid in the prevention and treatment of diseases
Web edition : 3:47 pm
Each time a human heart beats, blood rushes out of the muscular pump and winds through 60,000 miles of blood vessels. That network of tubes connects every cell of the body, each of them dependent on blood. This vital fluid delivers essential nutrients, carts away waste products, fights infection and heals wounds.
Blood is an amazing mixture of three different types of cells suspended in liquid called plasma. If you weigh 80 pounds (36 kilograms), your body probably contains at least 2 liters of blood ? the volume of a large soda bottle.
Though scientists understand the primary jobs of blood?s contents, they?re learning that a variety of cells work together in complicated ways...
Visit the new?Science News for Kids?website to read the full story:?Blood does a body good
Found in: Science News For Kids
Source: http://www.sciencenews.org/view/generic/id/333447/title/FOR_KIDS_Blood_does_a_body_good
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