Products and services A typical heart has two upper and two lower chambers. The upper chambers, the right and left atria, receive incoming blood. The lower chambers, the more muscular right and left ventricles, pump blood out of the heart. The heart valves, which keep blood flowing in the right direction, are gates at the chamber openings.

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The lower chambers, the more muscular right and left ventricles, pump blood out of the heart. The heart valves, which keep blood flowing in the right direction, are gates at the chamber openings.

Heart Chambers Diagram - Heart Chambers Chart - Human anatomy diagrams and charts explained. This anatomy system diagram depicts Heart Chambers with parts and labels. Best diagram to help learn about health, human body and medicine.