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The barrier between the air in alveolus andblood in pulmonary capillaryconsists of 3layers and its total thickness |
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Answer» ong>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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