Q. 44.0( 143 Votes )

How are the lungs designed in human beings to maximize the area for exchange of gases?

Answer :

The structure of the lung can be described as follow:

Each lung receives bronchi which divide into bronchioles. These bronchioles further end with a large number of alveoli.
These alveoli are small, round balloon-like structure, that is further connected with veins and arteries.
These alveoli because of balloon-like structure provide a larger surface area and occupy very less volume.

Hence they provide a larger surface thus maximizing the surface area for the exchange of gases inside the lungs.

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