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lubb-dupp |
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lubb-dupp (lub-dup´) syllables used to represent the first and second heart sounds. lubb-dupp, an imitation of the two basic sounds heard in the cardiac cycle. Lubb represents the first sound (S1), which is longer and has a lower pitch and is made by the closure of the mitral and tricuspid valves. It is lower in pitch and lasts slightly longer than the second sound, dupp (S2), which is made by the closure of the aortic valve. lubb a syllable used to represent, or mimic, the first sound of the heart in auscultation. See also heart sounds. lubb-dupp two syllables used to mimic the first (lubb) and second (dupp) sounds of the heart in auscultation. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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