ENDOCRINE ORGANS AND RESPIRATORY SYSTEM
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Dry surface of respiratory structures
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Moist surface of respiratory structures
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Thin respiratory structures
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Thick respiratory structures
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Large surface of respiratory structures
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Detailed explanation-1: -Large surface area to allow faster diffusion of gases across the surface. Thin walls to ensure diffusion distances remain short. Good ventilation with air so that diffusion gradients can be maintained. More items
Detailed explanation-2: -Moist walls-gases dissolve in the moisture helping them to pass across the gas exchange surface. Permeable walls-allow gases to pass through. Extensive blood supply-ensuring oxygen rich blood is taken away from the lungs and carbon dioxide rich blood is taken to the lungs.
Detailed explanation-3: -Membrane thickness – the thinner the membrane, the faster the rate of diffusion. Membrane surface area – the larger the surface area, the faster the rate of diffusion. Pressure difference across the membrane. Diffusion coefficient of the gas.