Where does the exchange of gases take place in lungs?
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During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
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Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them
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