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==The Three Early Embryonic Circulations== | |||
Three paired veins drain into the primordial heart tube: vitelline veins (returning poorly oxygenated blood from the yolk sac) | Three paired veins drain into the primordial heart tube: | ||
# vitelline veins (returning poorly oxygenated blood from the yolk sac) | |||
# umbilical veins (carrying well-oxygenated blood from the primordial placenta) | |||
# common cardinal veins (return poorly oxygenated blood from the body of the embryo). | |||
The vitelline venous system gives rise to the liver sinusoids and portal system, and forms the ductus venosus which shunts blood from the umbilical vein to the IVC. | The vitelline venous system gives rise to the liver sinusoids and portal system, and forms the ductus venosus which shunts blood from the umbilical vein to the IVC. | ||
[[Category:Heart ILP]] [[Category:Heart]] [[Category:Cardiovascular]] [[Category:Cartoon]] | [[Category:Heart ILP]] [[Category:Heart]] [[Category:Cardiovascular]] [[Category:Cartoon]] | ||
Revision as of 17:08, 17 August 2011
The Three Early Embryonic Circulations
Three paired veins drain into the primordial heart tube:
- vitelline veins (returning poorly oxygenated blood from the yolk sac)
- umbilical veins (carrying well-oxygenated blood from the primordial placenta)
- common cardinal veins (return poorly oxygenated blood from the body of the embryo).
The vitelline venous system gives rise to the liver sinusoids and portal system, and forms the ductus venosus which shunts blood from the umbilical vein to the IVC.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 10:28, 14 March 2010 |  | 1,552 × 1,028 (171 KB) | Z3212774 (talk | contribs) | category:Heart ILP The three early embryonic circulations. Three paired veins drain into the primordial heart tube: vitelline veins (returning poorly oxygenated blood from the yolk sac), umbilical veins (carrying well-oxygenated blood from the primor |
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