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Definitions of right atrium
Definition that contains right atrium
  • coronary sinus a short sinus receiving most of the veins of the heart; empties into the right atrium
  • right atrioventricular valve valve with three cusps; situated between the right atrium and the right ventricle; allows blood to pass from atrium to ventricle and closes to prevent backflow when the ventricle contracts
  • tricuspid valve valve with three cusps; situated between the right atrium and the right ventricle; allows blood to pass from atrium to ventricle and closes to prevent backflow when the ventricle contracts
  • inferior vena cava receives blood from lower limbs and abdominal organs and empties into the posterior part of the right atrium of the heart; formed from the union of the two iliac veins
  • right ventricle the chamber on the right side of the heart that receives venous blood from the right atrium and pumps it into the pulmonary trunk
  • vena cava either of two large veins that return oxygen-depleted blood to the right atrium of the heart
  • postcava receives blood from lower limbs and abdominal organs and empties into the posterior part of the right atrium of the heart; formed from the union of the two iliac veins
  • sinus coronarius a short sinus receiving most of the veins of the heart; empties into the right atrium
  • atrioventricular node a node of specialized heart muscle located in the septal wall of the right atrium; receives impulses from the sinoatrial node and transmits them to atrioventricular bundle
  • precava receives blood from the head and arms and chest and empties into the right atrium of the heart; formed from the azygos and both brachiocephalic veins
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