What Aspects of the Structure of Lung Tissue Make Efficient

question 194

Multiple Choice

What aspects of the structure of lung tissue make efficient gas exchange possible?

• A) The enormous surface area of the bronchus and trachea, where the very thin-walled alveoli and equally thin-walled pulmonary capillaries make possible extremely rapid diffusion of gases between alveolar air and pulmonary capillary blood
• B) A small surface area and the respiratory membrane, where the very thin-walled alveoli and equally thin-walled pulmonary capillaries make possible lower diffusion of gases between alveolar air and pulmonary capillary blood and help retain oxygen in the body
• C) The enormous surface area and the respiratory membrane, where the very thin-walled alveoli and equally thin-walled pulmonary capillaries make possible extremely rapid diffusion of gases between alveolar air and pulmonary capillary blood
• D) A small surface area such as the pleura, where the very thin-walled alveoli and equally thin-walled pulmonary capillaries make possible extremely rapid diffusion of gases between alveolar air and pulmonary capillary blood

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