Fetal Heart Sounds Audio

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Human Fetus (GA 17 week) heart beat

The characteristic "lub-dup" sounds are associated with closing of heart valves. The first sound (lub) occurs as atrioventricular valves close and signifies beginning of systole (contraction) The second sound (dup) occurs when semilunar valves close at the beginning of ventricular diastole (relaxation) Thanks to Debra Copeland, for providing fetal heart beat for public use.


Quicktime | Flash


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Cite this page: Hill, M.A. (2024, June 24) Embryology Fetal Heart Sounds Audio. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Fetal_Heart_Sounds_Audio

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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