Within the lungs, gas exchange occurs across

Name: Within the lungs, gas exchange occurs across
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Gas exchange occurs across the alveoli, which are small air sacs in the lungs. These sacs are surrounded by capillaries where oxygen from inhaled air diffuses into the blood and carbon dioxide from the blood diffuses out into the air in the lungs. The bronchioles and bronchi are airways that lead to the alveoli, while the diaphragm is a muscle that aids in breathing.

Within the Lungs, Gas Exchange Occurs Across