肺泡表面活性物质(Pulmonary Surfactant)是由肺泡Ⅱ型上皮细胞分泌的1种脂蛋白,其主要功能是维持肺泡稳定,调节肺顺应性以及防止肺毛细血管内体液渗出至肺泡内,目前对肺泡表面活性物质的研究日益深入,其超微结构的研究受到了人们的重视。但国内这方面的工作开展得较少,西南地区则未见报道。我们根据Stratton Luft等人 Pulmonary surfactant (Pulmonary Surfactant) is a type of lipoprotein secreted by alveolar Type II epithelial cells. Its main function is to maintain the stability of the alveolus, regulate lung compliance and prevent the exudation of pulmonary capillary fluid into the alveoli. At present, The research of surfactant has been deepening day by day, and the research of its ultrastructure has drawn people’s attention. However, the work done in this field in China is relatively small, while the Southwest region has not been reported. We follow Stratton Luft et al