PATHOLOGY MCQ
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What organ in the respiratory system where exchange of gases takes place?
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Trachea
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Bronchioles
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Bronchi
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Alveoli
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Explanation:
Detailed explanation-1: -During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
Detailed explanation-2: -Final answer: The exchange of gases in the alveoli of the lungs takes place by simple diffusion.
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