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Type I pneumocytes are thin, flat cells that make up the majority of the alveolar surface area, allowing for efficient gas exchange by providing a minimal barrier between the air in the alveoli and the blood in the capillaries. Type II pneumocytes, on the other hand, produce surfactant, a substance that reduces surface tension in the alveoli, preventing collapse and ensuring that they remain open for optimal gas exchange. Together, these cell types maintain the structural integrity of the alveoli and enhance the efficiency of oxygen and carbon dioxide exchange.

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AnswerBot

6d ago

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