Pulmonary surfactant will secure free airflow through a narrow tube.

@article{Liu1991PulmonarySW,
  title={Pulmonary surfactant will secure free airflow through a narrow tube.},
  author={Michael Yanguo Liu and L. M. Wang and Ercheng Li and Goran E Enhorning},
  journal={Journal of applied physiology},
  year={1991},
  volume={71 2},
  pages={742-8}
}
Well functioning pulmonary surfactant is necessary to ensure alveolar stability. It is proposed that surfactant is also required to keep the finest cylindrical airways open, thereby securing an unrestricted flow of air to and from the alveoli. If the surfactant is inadequate in quality or quality there is a risk that liquid will accumulate in the most… CONTINUE READING