Thursday 30 July 2015

Blood vessels- Unusual Facts

# UNUSUAL FACTS ABOUT THE HUMAN BODY#
Fact 2- Blood has a long road to travel: Laid end to end, there are about 60,000 miles of blood vessels in the human body. And the hard-working heart pumps about 2,000 gallons of blood through those vessels every day.

                     
                                  

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