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Did you know..........
1) Our blood is red in color. Do you know why?.... The hemoglobin present in our blood is reddish-purple in color. When this hemoglobin infuses with oxygen, it turn bright red. Thus our blood is red..
2) There are about more than 25 trillion of Red blood cells in our body. Red blood cells along with white blood cells and a liquid called plasma constitutes our blood.
3) Blood circulates our body through blood vessels. If all the blood vessels in our body are joined together, they could circle around the world more than twice..
4) The blood vessel is so tiny, that they are only 1/100 mm wide.
5) The red blood cells are made in the bone marrow and their life is only for 120 days.
6) For one complete circulation of blood in our body, starting form the lungs to heart, it takes just 60 seconds.
7) The blood vessels expand to increase in heat and contract to drop of temperature.
8) The red blood cells travel through the blood vessels at a speed of 2 m/s (meter/second).
9) If we line all the red blood cells in our body, it could circle around the earth 4 times.
10) Lungs have 600 million small sacs, each just 0.1 mm in size.
Is in't it shocking to know that there are so many interesting facts inside your body?. Believe it or not.... they are true.......
