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heart valve

   Also found in: Dictionary/thesaurus, Wikipedia 0.09 sec.
heart valve,
one of the four structures within the heart that prevent backflow of blood by opening and closing with each heartbeat. The valves include two semilunar valves, the aortic and pulmonary; the mitral or bicuspid valve; and the tricuspid valve. The valves permit blood flow in only one direction; any of the valves may become defective, permitting the backflow associated with heart murmurs. Also called cardiac valve. See also heart, mitral valve, semilunar valve, tricuspid valve.


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The Toronto Root(TM) bioprosthesis, featuring our BiLinx(TM) anticalcification technology, continues our commitment to provide the best solutions for heart valve disease with the broadest line of heart valve replacement and repair products available from any supplier.
A hardened heart valve is like a rusty carburetor on a car: It call stall the machinery.
The suit follows studies linking the drug to heart valve defects.
 
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