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The lungs play an increadably important role in the circulatiory system. Without lungs we would not be alive.

The role of the lungs sounds quite simple though, when you inhale they take in the oxygen and pass it along to the blood flow thorough the bronchi and alveoli.

The red blood cells then make carbon dioxide as a bi-product which is collected up by the bronchi and breathed back out again.

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13y ago

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