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Atrium

Synonym(s)

  • atrial
  • auricle of heart
  • cardiac atrium
  • heart atrium

Definition(s)

Upper right or left chambers of the heart.

Definition from: Unified Medical Language SystemThis link leads to a site outside Genetics Home Reference. (CRISP Thesaurus)   at the National Library of Medicine

The paired upper chambers of the heart. The left atrium receives oxygenated blood from the pulmonary vein and pumps blood into the left ventricle. The right atrium receives venous deoxygenated blood from the entire body via the superior and inferior vena cavae and pumps blood into the right ventricle.

Definition from: Unified Medical Language SystemThis link leads to a site outside Genetics Home Reference. (NCI Thesaurus)   at the National Library of Medicine

 
Published: January 23, 2009