What Are the Middle Three Layers (4-5-6)that an Oxygen Molecule

question 1

Multiple Choice

What are the middle three layers (4-5-6) that an oxygen molecule must cross when moving from the alveoli into the blood?

• A) interstitial space, basement membrane of the capillary endothelium, and the capillary endothelium
• B) the liquid lining the intra-alveolar membrane, alveolar epithelial cell, and the basement membrane of the alveolar epithelial cell
• C) interstitial space, basement membrane of the capillary endothelium, and the intracellular fluid of the erythrocyte
• D) plasma of the capillary blood, the erythrocyte membrane, and the intracellular fluid in the erythrocyte.

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