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If not present (and the intra-alveolar pressure equaled atmospheric pressure) the lungs would collapse.

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14y ago
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1mo ago

The partial vacuum in the intrapleural space helps maintain the lungs' inflation and prevents lung collapse by creating a negative pressure that opposes the natural elastic recoil of the lungs. This vacuum also helps keep the lungs in close contact with the chest wall, allowing for efficient gas exchange during respiration.

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Q: Explain the functional importance of the partial vacuum that exists in the intrapleural space?
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