In Order, What Are the First Three Layers of the Alveolar

question 32

Multiple Choice

In order, what are the first three layers of the alveolar capillary membrane that an oxygen molecule crosses?
I. Liquid lining the intra-alveolar membrane
II. Alveolar epithelial cell
III. Basement membrane of the alveolar epithelial cell
IV. Interstitial space

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

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