File:Week17 fetal heart rate.mp4
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Week17_fetal_heart_rate.mp4 (file size: 398 KB, MIME type: application/acad)
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Human Fetus (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)
Reference
Thanks to Debra Copeland, for providing fetal heart beat for public use.
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 10:30, 29 April 2013 | (398 KB) | Z8600021 (talk | contribs) | ==Human Fetus (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 (du... |
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