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The barrier between the air inalveolus andblood in pulmonary capillaryconsists of 3layers and its total thickness |
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Answer» Answer: 3 layers of the barrier, INCLUDING the CAPILLARY ENDOTHELIUM, alveolar epithelium, and the extracellular matrix (ECM), which has a band of type IV collagen in the CENTER that provides the necessary STRENGTH for the barrier. |
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