ANIMAL PHYSIOLOGY
EXCRETION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Where in the respiratory system does gas exchange occur?
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heart
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alveoli
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pharynx
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trachea
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Explanation:
Detailed explanation-1: -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: -Alveoli are wrapped in tiny blood vessels called capillaries. The air you breathe in fills these air sacs with oxygen-rich air. This is where the exchange of gases occurs.
Detailed explanation-3: -Gas exchange in the alveoli occurs primarily by diffusion.
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