吸入尘粒对肺表面活性物质系统的作用谢尔凡，杨宗城肺表面活性物质（ＰＳ）系统是维持正常肺功能的基础。肺泡表面与外界环境的接触面积远大于体表面积。吸入尘粒中直径小于１μｍ者可到达肺泡，通过直接作用于肺泡表面细胞外ＰＳ使其失活；干扰细胞内、外ＰＳ代谢，使其... Role of Inhaled Dust on Pulmonary Surfactant Systems Shervan, Yang Zongcheng Pulmonary surfactant (PS) system is the basis for maintaining normal pulmonary function. Alveolar surface and the external environment, the contact area is much larger than the body surface area. Inhalation of dust particles in diameter less than 1μm can reach the alveoli, by directly acting on the alveolar surface of the extracellular PS inactivation; interfere with intracellular and extracellular PS metabolism, so that ...