3 years ago

Why are there many alveoli in the lungs?

2 answers:

7 0

<em>it is so because :
lungs have to exchange the gases between itself and the surrounding capillaries so for this purpose a larger surface area is required ,, having a large number of alveoli provide large surface area..
</em>

Aleksandr [31]3 years ago

3 0

There is a much greater surface area for the exchange of oxygen and carbon dioxide.

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