Heart valves
The valves of the heart open and close to control the flow of blood entering or leaving the heart.
Review Date: 5/15/2009
Reviewed By: Larry A. Weinrauch, MD, Assistant Professor of Medicine, Harvard Medical School, Cardiovascular Disease and Clinical Outcomes Research, Watertown, MA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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