Answers

2015-06-26T21:12:52+08:00
As the oxygen or air enters to your lung area , it will be going to the heart and will be the one who will be making the blood oxygenated , oxygenated blood is pump from the left atrium to left ventricle , arteries , and then to the capillaries in which oxygenated blood becomes deoxygenated blood , gas exchange. Deoxygenated blood is pump through the veins , right ventricle and right atrium , back to the lung area in which it will become air , or gas , that is carbon dioxide and out of the body or the anus
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