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2015-07-02T14:49:06+08:00

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The lungs' main function is to help oxygen from the air we breathe enter red blood cells. Red blood cells then carry oxygen around the body to be used in the cells found in our organs and tissues. The lungs also help the body to get rid of CO2 gas when we breathe out.
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2015-07-02T20:35:44+08:00
It contains the oxygen and other gases. The oxygen is moved into the bloodstream and carried through youre body
 
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