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Question
In lungs, gaseous exchange takes place in
In lungs, gaseous exchange takes place in
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Solution
The correct option is B alveoli
Trachea divides into bronchi and bronchi divide into bronchioles. Bronchioles branch further inside the lungs and end in very thin-walled sac like structures called air sacs or alveoli.
Alveoli are the structural and functional units of lungs as these are the actual sites of gaseous exchange.
Trachea divides into bronchi and bronchi divide into bronchioles. Bronchioles branch further inside the lungs and end in very thin-walled sac like structures called air sacs or alveoli.
Alveoli are the structural and functional units of lungs as these are the actual sites of gaseous exchange.
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