#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 of:  #body [49,49]
  part:  #liver  large and complicated reddish-brown glandular organ located in the upper right portion of the abdominal cavity; secretes bile and functions in metabolism of protein and carbohydrate and fat; synthesizes substances involved in the clotting of the blood; synthesizes vitamin A; detoxifies poisonous substances and breaks down worn-out erythrocytes
     part:  #Kupffer's_cell  specialized cells in the liver that destroy bacteria and foreign proteins and worn-out blood cells
     part:  #hepatic_artery__hepaticartery__arteria_hepatica__arteriahepatica  arteries that supply the liver
     part:  #hepatic_vein__hepaticvein__vena_hepatica  a vein that drains the liver; empties into the vena cava
     part:  #hepatic_lobe__hepaticlobe  any of the five lobes forming the liver
     part:  #hepatic_duct__hepaticduct  the duct that drains bile from the liver
     part:  #common_bile_duct__bile_duct  a duct formed by the hepatic and cystic ducts; opens into the duodenum
        part:  #musculus_sphincter_ductus_choledochi  the smooth muscle sphincter of the common bile duct
     part:  #biliary_ductule  excretory ducts of the liver; empty into the hepatic ducts
     part:  #venae_interlobulares_hepatis  interlobular veins of the liver
  part:  #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:  #coronary_artery__arteria_coronaria__arteriacoronaria  the artery that branches from the aorta to supply blood to the heart
     part:  #cardiac_muscle__cardiacmuscle__heart_muscle__heartmuscle  the muscle tissue of the heart; adapted to continued rhythmic contraction
     part:  #cardiac_valve__cardiacvalve__heart_valve  a valve to control one-way flow of blood
        part:  #cusp.flap__leaflet  a thin triangular flap of a heart valve
     part:  #valve.anatomical_structure  a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
  part:  #bloodstream  the blood flowing through the circulatory system
  part:  #lymph  a thin coagulable fluid (similar to plasma but) containing white blood cells (lymphocytes) and chyle; is conveyed to the blood stream by lymphatic vessels
  part:  #blood_vessel__bloodvessel  a vessel in which blood circulates
  part:  #vein__vena  a blood vessel that carries blood from the capillaries toward the heart; all veins except the pulmonary carry unaerated blood
  part:  #lymph_node__lymphnode__lymph_gland__lymphgland__node  the source of lymph and lymphocytes

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