intrapleural pressure is negative to maintain lung inflation.

Question

Quizplus · Accepted Answer

Intrapleural pressure is normally negative to maintain lung inflation. This negative pressure is created by the outward pull of the chest wall and the inward recoil of the lungs, which together create a vacuum effect that keeps the lungs inflated. If this negative pressure is lost, such as in the case of a collapsed lung or pneumothorax, the lung will deflate due to the lack of opposing forces.

Intrapleural Pressure Is Negative to Maintain Lung Inflation