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Sunday 28 June 2015

What is the colour of Blood ?

[caption id="attachment_59" align="aligncenter" width="467" caption=""Human Blood""]"Human Blood"[/caption]
ANYONE KNOW THAT THE COLOUR OF BLOOD IS RED , BUT IT IS SURPRISED THAT BLOOD COLOUR IS NOT RED , IT IS BLACK.
We know that colour of blood is red. But really the blood flows in our body is black colour. When blood comes out from our body and direct contact with oxygen then it changes colour black to red. Oxygen also available in our blood. According to amount of oxygen present in our blood the colour of blood also may black if low oxygen and may red if high oxygen. In our body blood helps to make alive the cell and tissue. Tissue low down the amount of oxygen from blood. So the blood colour changes to black. Then blood flows through lungs to maintain the amount oxygen in blood and it change the colour black to red.

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