Why lungs are divided into numerous sack like structures?
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compartmentalization is necessary for easier & quicker respiration. Alveolis are present for exchange of oxygen. this oxygen goes into our blood through capillaries surrounding alveoli
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the numerous sac like structure present in the lungs is called alveoli which helps in exchange of gases through diffusion in our our body I. e exchange of carbon dioxide and oxygen on the basis of difference in partial pressure in the lungs and the blood..
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