Intrapleural pressure ■ Pressures involved Intrapulmonary pressure =Atmospheric(760 mmHg) pressure Elastic recoil atmospheric pressure Intrapleural pressure 756 um Hg thoracic wall -mm hg) pleural cavity collapsIng force of lungs 4 mm Hg 760 mm HgIntrapleural pressure ◼ Pressures involved – Intrapulmonary pressure =Atmospheric (760 mmHg) pressure – Elastic recoil – Intrapleural pressure