Fetal Heart Sounds Audio
From Embryology
Human Fetus (GA 17 week) heart beat
This audio only movie is a realtime recording of the GA week 17 fetal heart rate and heart sounds.
<mp3player>File:Week17 fetal heart rate.mp3</mp3player>
The characteristic "lub-dup" sounds are associated with closing of heart valves.
- First sound (lub) occurs as atrioventricular valves close and signifies beginning of systole (contraction).
- Second sound (dup) occurs when semilunar valves close at the beginning of ventricular diastole (relaxation).
There is both a tutorial and development information page for cardiac valve development.
Atrioventricular valves | Semilunar valves |
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- Links: MP4 version | Quicktime version | Ultrasound Week 12 Heart Rate | Heart Valve Development | Heart Rate Development | Cardiovascular System Development | Ultrasound | Movies
Reference
Thanks to Debra Copeland, for providing fetal heart beat for public use.
Glossary Links: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Movies
Cite this page: Hill, M.A. (2024, June 16) Embryology Fetal Heart Sounds Audio. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Fetal_Heart_Sounds_Audio
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G