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When we breathe in, air enters the lungs through the trachea and bronchi, filling the alveoli, tiny air sacs where gas exchange occurs. Oxygen from the inhaled air diffuses into the bloodstream, binding to hemoglobin in red blood cells, while carbon dioxide, a waste product, is released from the blood into the alveoli to be exhaled. This process is essential for delivering oxygen to our cells and removing carbon dioxide, supporting cellular metabolism and overall bodily functions.

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AnswerBot

1w ago

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