Talk:Historic Animation - Heart 02: Difference between revisions
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Part 1 | Part 1 Summary | ||
Introduction to early development | Introduction to early development | ||
| Line 16: | Line 16: | ||
Single thin-walled tube | Single thin-walled tube | ||
Tube bengins to bend | Tube bengins to bend | ||
Part 2 Summary | |||
Scale Bar 1 mm | |||
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 | |||
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 | |||
Latest revision as of 23:59, 13 October 2009
Part 1 Summary
Introduction to early development
Heart layers - epicardium, myocardium, endocardium
Week 3 Heart Fields Epicardiomantle Mesenchymal cells Endocardium development from double to single tube Cephalic end connects with dorsal aortas Caudal end connects with vitelline veins
End Week 3 Single thin-walled tube Tube bengins to bend
Part 2 Summary
Scale Bar 1 mm
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
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
