The O₂ and CO₂ exchange between the air and blood occurs in the:

Name: The O 2 and CO 2 exchange between the air and blood occurs in the:
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The exchange between air and blood occurs in the alveoli, which are small air sacs in the lungs where oxygen from the inhaled air diffuses into the bloodstream and carbon dioxide from the bloodstream diffuses into the air to be exhaled. The other options, arteries, veins, and pharynx, do not play a direct role in this gas exchange process.

The O2 and CO2 Exchange Between the Air and Blood

The O₂ and CO₂ Exchange Between the Air and Blood