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Chambers of the heart

Inside view 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.

Current as of: April 29, 2021

Author: Healthwise Staff
Medical Review:
William H. Blahd Jr. MD, FACEP - Emergency Medicine
Adam Husney MD - Family Medicine
Martin J. Gabica MD - Family Medicine
David Messenger MD - Emergency Medicine, Critical Care Medicine
H. Michael O'Connor MD - Emergency Medicine

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