What is Surfactant? The alveoli contain many types of cells. Among them Type 2 Pneumocytes produces surfactant. The main function of surfactant is to reduce surface tension, so that decrease the work of breathing. Surfactant forms a thin monomolecular layer at the air fluid interface. Surfactant layer is not static. It is continuously secreting and reabsorbing. Deficiency of surfactant causes Respiratory Distress Syndrome (ARDS) in Newborn. It is also called hyaline membrane disease. How Surfactant Forms and Reabsorbed? Type 2 Pneumocytes Continue Reading…..