The exchange of gases between blood and capillaries takes place in the alveoli of the lungs. These tiny air sacs are surrounded by a dense network of capillaries, and gas exchange occurs across their thin walls. Oxygen moves from the alveoli into the blood, and carbon dioxide moves from the blood into the alveoli to be exhaled.
The exchange of gases between blood and capillaries take place at which one of the following place?
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