Pulmonary Surfactant Secretion

Pulmonary surfactant is a biological mixture of lipids and proteins which is secreted by the epithelial type-II cells into the alveolar space. It is crucial for the normal respiratory mechanics. This video talks about the secretion of pulmonary surfactant from type-II alveolar cells and highlight its important. Timeline: 00:10 introduction 00:41 type 2 alveolar cells 01:17 alveolar surface tension 03:35 secretion of type 2 alveolar cells 05:25 premature birth and surfactant