New Design for Mechanical Heart Valves, University of Trieste Study
11/23/2011 7:09:41 AM
The heart's valves, which guarantee the unidirectional flow of blood from one chamber to another, are asymmetrical. For example, the two flaps of the heart's mitral valve -- which regulates blood flow between the left atrium and the left ventricle -- vary in size by up to 70 percent.
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