#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
  supertype:  tissue_layer__membrane  a pliable sheet of tissue that covers or lines or connects organs or cells of animals
  subtype:  pleura  the thin serous membrane around the lungs and inner walls of the chest
     subtype:  parietal_pleura  pleura that lines the inner chest walls and covers the diaphragm
     subtype:  visceral_pleura  pleura that covers the lungs
  subtype:  peritoneum  a transparent membrane that lines the abdominal cavity in mammals and covers most of the viscera
     subtype:  mesentery  a double layer of peritoneum that attaches to the back wall of the abdominal cavity and supports the small intestines
        subtype:  mesocolon  mesentery that holds the lower colon the back abdominal wall
     subtype:  omentum  a fold of peritoneum supporting the viscera
        subtype:  greater_omentum__greateromentum__gastrocolic_omentum__gastrocolicomentum__caul  part of the peritoneum attached to the stomach and to the colon and covering the intestines
        subtype:  lesser_omentum  a part of the peritoneum attached to the stomach and liver and supporting the hepatic vessels
  subtype:  endocardium  the membrane that lines the cavities of the heart and forms part of the heart valves
  subtype:  pericardium  a double-layered serous membrane that surrounds the heart
  subtype:  epicardium__visceral_pericardium  the innermost of the two layers of the pericardium
  subtype:  parietal_pericardium  the tough outermost layer of the pericardium that is attached to the diaphragm and the sternum

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