pulmonary surfactant molecule. chemical structure of dipalmitoylphosphatidylcholine dppc the major constituent of lung.

active alveoli atomic atoms carbon chemical chemistry choline composition compound dipalmitoylphosphatidylcholine dppc drawing flat formula hydrogen icon lecithin line lipid lung molecular molecule nitrogen oxygen palmitic palmitoyl phosphatidyl phospholipid phosphorus pulmonary skeletal structure surface surfactant tension