The heart has four chambers or "rooms."
- The atria (AY-tree-uh) are the two upper chambers that collect blood as it flows into the heart.
- The ventricles (VEN-trih-kuhls) are the two lower chambers that pump blood out of the heart to the lungs or other parts of the body.
Source: NHLBI (NIH)1
Read about these related anatomy topics:
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- Source: NHLBI (NIH): nhlbi.nih.gov/ health/ health-topics/ topics/ chd/ heartworks
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Note: This site is for informational purposes only and is not medical advice. See your doctor or other qualified medical professional for all your medical needs.