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Chambers of the heart

Chambers of the heart

Illustration of the chambers of the heart

The heart has four chambers: two atria and two ventricles.

  • The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle.
  • The right ventricle pumps the oxygen-poor blood to the lungs.
  • The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle.
  • The left ventricle pumps the oxygen-rich blood to the body.
Last Updated: April 27, 2007
Medical Review: William M. Green, MD - Emergency Medicine
H. Michael O'Connor, MD - Emergency Medicine
This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information.


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