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Q. 9. How are the alveoli designed to maximise the exchange of gases?
Answers (2)
The alveoli are thin walled and are richly supplied with blood vessels to maximise the exchange of gases.
The alveoli have baloon like structure thus providing a large surface area available for the exchange of gases.
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They are smaller tubes which finally terminate in balloon- like structures which are called aleveoli. They allow oxygen and carbon dioxide to move between the lungs and bloodstream.
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