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प्रश्न
During respiration, the exchange of gases takes place in:
पर्याय
Bronchi
Alveoli
Bronchioles
Trachea
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उत्तर
Alveoli
Alveoli are the pouch-like air sacs at the end of the small bronchioles. The walls of the alveoli are very thin. Also, they are surrounded by very thin blood capillaries. It is in the alveoli that the gaseous exchange takes place.
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