PATHOLOGY MCQ
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of these is NOT an adaptation of the alveoli for efficient gas exchange?
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Large surface area
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thick walls
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moist membranes
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a constant flow of blood through capillaries
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Explanation:
Detailed explanation-1: -So, the correct option is ‘thick walls’.
Detailed explanation-2: -These modifications: a larger lung volume, a high density of gas-exchanging surface and a very thin air-blood barrier, coupled with functional adaptations, such as high heart and respiration rates, are observed in species requiring very high O2 consumption and pulmonary diffusion.
Detailed explanation-3: -Partial pressure of gases. Diffusion. Concentration gradient of gases. Solubility of gases. The thickness of the respiratory membrane.
There is 1 question to complete.