Question

Give reasons how alveoli are designed to gas exchange

Answer 1

HEYA!!
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✨Alveoli are the Sac like structure at the end of Bronchioles . These are specifically designed to maximise the area for gaseous exchange.

✔They have very thin walls which allows the respiratory gases ( Carbon dioxide and Oxygen ) to easily diffuse in and out of the walls.

✔These are very richly supplied with blood vessels to maximise the gaseous exchange .

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Answer 2

♥ The alveoli are thin walled and richly supplied with a network of blood vessels to facilitate exchange of gases between blood and the air filled in alveoli .

♥ Alveoli have balloon-like structure . Thus , provide maximum surface for exchange of gases .