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Question
Where does the exchange of gases take place in the respiratory system?
Where does the exchange of gases take place in the respiratory system?
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Solution
The correct option is B Alveoli
The lungs consist of an internal tree-like system of tubes, the ultimate branches of which terminate into pouch-like bodies called atria. The atria are surrounded by thin-walled elastic air sacs called alveoli which make up the greater part of lung tissue. The exchange of gases takes place only in the alveoli.
Alveoli
The lungs consist of an internal tree-like system of tubes, the ultimate branches of which terminate into pouch-like bodies called atria. The atria are surrounded by thin-walled elastic air sacs called alveoli which make up the greater part of lung tissue. The exchange of gases takes place only in the alveoli.
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