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Asked by grey49dug to Ciara on 2 Nov 2020.
Question: Why do we need blood in our body to keep us alive
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Ciara Tierney answered on 2 Nov 2020:
Blood is extremely important for a number of reasons. Firstly blood brings oxygen all around our bodies and it also removes carbon dioxide. Blood can keep us warm in cold conditions and cool when it is very warm outside. The blood also contains antibodies. Antibodies are basically a little army inside the body that recognise infection and help to fight it to make us better. Blood transports these antibodies to the site of infection. When we have a cut, platelets within the blood clump together to form a scab on the surface of the skin. This prevents us from losing too much blood and stops things from entering our bodies too.
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Liudmila commented on :
Blood also brings nutrients, such as vitamins, sugars, minerals to our body cells and picks up their waste and transport it, for example, to kidneys so it can be removed from the body.