Historic Animation - Heart 02: Difference between revisions
From Embryology
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| <Flowplayer height="260" width="320" autoplay="false">Heart_historic_002.flv</Flowplayer> | | <Flowplayer height="260" width="320" autoplay="false">Heart_historic_002.flv</Flowplayer> | ||
| valign="top" | | | valign="top" |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 | |||
* Primitive atria - above sinus venosus | |||
* Conus - above primitive atria | |||
* Truncus arteriosus - above conus | |||
* Aortic arches - above truncus arteriosus | |||
Caudal to cranial sequence | |||
sinus venosus - primitive atria - conus - truncus arteriosus - aortic arches | |||
Middle Week 3 | |||
* 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 | |||
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Revision as of 00:00, 14 October 2009
<Flowplayer height="260" width="320" autoplay="false">Heart_historic_002.flv</Flowplayer> | 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)
Caudal to cranial sequence sinus venosus - primitive atria - conus - truncus arteriosus - aortic arches Middle Week 3
End Week 3
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