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How are lungs design in human …

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How are lungs design in human being to maximise the area of exchange of gases

Posted by Kailash Pandey 6 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Yogita Ingle 6 years, 3 months ago

Within the lungs, the air passage divides into smaller and smaller tubes which finally terminate in balloon like structures called alveoli. The alveoli provide a surface where the exchange of gases can take place. The 2 lungs together have about 300-500 million alveoli. The walls of the alveoli are supplied with an extensive network of blood vessels. So lungs maximise the area for gaseous exchange through the presence of large number of alveoli which are richly supplied with blood.

Vanshika . 6 years, 3 months ago

Because of alveoli

Lucifer ? Morningstar? 6 years, 3 months ago

With the help ot Alveoli that present in lungs help to extend or spread the area of lungs for exchanges of gases

Deepak Singh 6 years, 3 months ago

Lungs have balloon like structure called villi,these villi maximise the area of exchanges of gases.

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