#pleura  the thin serous membrane around the lungs and inner walls of the chest
  supertype:  serous_membrane__serosa  a thin membrane lining the closed cavities of the body; has two layers with a space between that is filled with serous fluid
  subtype:  parietal_pleura  visceral_pleura
  part of:  pleural_cavity__pleuralcavity  the cavity in the thorax that contains the lungs

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