Labels:apparel | book | bulletin board | colostrum | door | earth | person | railing | sky OCR: OXYGEN EXCHANGE LL THE CELLS AND TISSUES n your body need constant supply of oxygen to keep you alive. Every time you breathe in oxygen enters your lungs. Here it is absorbed by the blood and carried to the cells and tissues Heart Lungs throughout your body At the same time waste product called carbon dioxide is removed from the tissues, and carried by the blood to the lungs. When you breathe out the carbon dioxide Is expelled from your lungs Oxygen exchange Oxygen-rich Oxygen -poor In the lungs blood blood From heart to body From body to heart Oxygen exchange In the tissues Flow of oxygen
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