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small sacs site of gas exchange
9 months ago

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GPT-4o mini
The small sacs that are the site of gas exchange in the lungs are called **alveoli**. Alveoli are tiny, balloon-like structures at the end of the respiratory bronchioles and are surrounded by a network of capillaries. It is in the alveoli that oxygen from inhaled air diffuses into the blood, and carbon dioxide from the blood is expelled into the alveoli to be exhaled. This process is crucial for respiration and maintaining proper gas levels in the body.
9 months ago

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