#cardiac_valve__cardiacvalve__heart_valve  a valve to control one-way flow of blood
  supertype:  valve.anatomical_structure  a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
  subtype:  atrioventricular_valve  semilunar_valve
  part:  cusp.flap
  part of:  heart.internal_organ__pump__ticker  the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions pump blood through the body; "he stood still, his heart thumping wildly"
     part of:  circulatory_system__circulatorysystem__cardiovascular_system  the organs and tissues involved in circulating blood and lymph through the body
        part of:  body__organic_structure__organicstructure__physical_structure  the entire physical structure of an organism (especially an animal or human being); "he felt as if his whole body were on fire"

No statement uses or specializes cardiac_valve; click here to add one.