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Friday, January 28, 2011

Interesting Facts - (Human Blood)

Interesting Facts - (Human Blood)

2.5 trillion number of blood cells are present in blood

2.5 billion number of times the heart beats without resting during a 70 year lifetime

1 billion number of oxygen molecules of hemoglobin are present in a red blood cell

250 million number of molecules of hemoglobin are present inside a red blood cell

1,50,000 km is the total length of the body's blood vessels

120 days is a lifespan of a red blood cell

99% is the proportion of all blood cells that are red blood cells

5 litres of blood is present in an average adult's body

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