what happens to air after it reaches our lungs
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The air travels down your windpipe and into your lungs. After passing through your bronchial tubes, the air finally reaches and enters the alveoli. Through the very thin walls of the alveoli, oxygen from the air then passes to the surrounding capillaries.
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your lungs to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled
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