Question

how are lungs designed to maximize the exchange of gases???

Answer 1

Heya here is ur answer...
human body is provided with two lungs...each lung have bronchiales in it...which further divide into million sac like structure at the end...called alveoli...they are supplied with reach blood vessel.... as there are million of alveoli in each lung...it increase the surface area for exchange of gases....
therefore like this lungs are designed to maximize the exchange of gases...
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Answer 2

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There are millions of alveoli in the lungs.

The presence millions of alveoli in the lungs provides a very large area for the exchange of gases.

And the ability of large surface area maximize the exchange gases.

For example– if all alveoli from the to human lungs are unfolded, they would give an area of about 80 square metres ( which is nearly the size of a Tennis Court ).

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