#circulatory_system__circulatorysystem__cardiovascular_system  the organs and tissues involved in circulating blood and lymph through the body
  supertype:  vascular_system  the vessels and tissue that carry or circulate fluids such as blood or lymph or sap through the body of an animal or plant
  subtype:  fetal_circulation  the system of blood vessels and structures through which blood moves in a fetus
  part:  liver  heart.internal_organ  bloodstream  lymph  blood_vessel  vein  lymph_node
  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"

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