Which of the Following "Layers" Must Be Traversed by Gases

question 32

Multiple Choice

Which of the following "layers" must be traversed by gases moving across the alveolar-capillary membrane?
I.alveolar epithelial membrane
II.capillary endothelial membrane
III.interstitial space
IV.transbronchial radial tethering mechanisms

• A)I, II, and III
• B)I, II, and IV
• C)II and III
• D)I, II, III, and IV

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