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File:Heart_historic_002_icon.jpg</wikiflv>
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Sinus venosus - draining fluid and blood cells from 3 pairs of vessels (vitelline veins, umbilical veins, common cardinal veins)
common cardinal veins = ducts of Cuvier (Scale bar 1 mm)
- Heart tube - bends ventrally to the right
- Caudal to cranial sequence: sinus venosus - primitive atria - conus - truncus arteriosus - aortic arches
Middle Week 3 (Gestational Age - week 5)
- Splanchnopleuric mesoderm - differentiated into epimyocardial mantle around the tubes
- Two heart tubes - brought together by the folding of the body
- Foregut - lies dorsal to the heart tubes
End Week 3
- Spontaneous cardiac contractions
- Detachment of the heart tube dorsally
- Primordia of transverse sinus of the pericardium
Next: Part 3
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About Historic Animations
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Animations are modified and converted from a historic film (circa 1960's, copyright unknown) demonstrating aspects of human heart development.
The sound quality is quite poor and some of the information is now out of date, most general concepts are still correct.
Please note the relatively large size (Mb) of each excerpt will effect download and viewing.
March 2013
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