ie2smin8alippre
ie2smin8alippre
20-10-2016
Health
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How does oxygen enter the lungs?
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punked
punked
20-10-2016
after you take a breath the air travels through your windpipe and into the lungs
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cavano73
cavano73
20-10-2016
As your lungs expand, air is sucked in through your nose or mouth. The air travels down your windpipe and into your lungs. After passing through your bronchial tubes, the air finally reaches and enters the alveoli
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