Question

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

Answer 1

Answer:

Lungs play a major role in the respiratory system. In humans, a pair of lungs are designed in such a way that they are lined by a thin membrane, the smaller tubes called bronchioles a balloon-like structure called alveoli and network of blood capillaries increase the surface area for exchange of gases.

Answer 2

⭐Answer:-⭐

Each lungs has highly branched respiratory tract called respiratory tree. A primary bronchus divides into secondary bronchi, secondary into segmental bronchi, segmental bronchus into bronchioles which divides into terminal bronchioles, respiratory bronchioles, alveolar sacs and alveoli. Alveoli are small rounded pouches which are extremely thin walled and possess a network of capillaries over their surface. They function as respiratory surfaces.

The total area of all the alveoli is more than 80m². It is several times more than the surface of the whole human body.

Thus, the human lungs are designed to maximise the area of exchange of gases.

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