Yolk Sac

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Mouse
Yolk Sac
Liver
Spleen
Bone Marrow
Birth
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anterior cardinal vein
right horn of the sinus venosus
left horn of the sinus venosus
common cardinal vein
degenerating right umbilical vein
degenerating left umbilical vitelline veins
inferior vena cava
ductus venosus
liver
persistent portion of left umbilical vein
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atrium
future superior vena cava
Opening of sinus venosus into right atrium
future coronary sinus
future inferior vena cava
superior vena cava
sinus venarum of right atrium
coronary sinus
inferior vena cava
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pulmonary veins
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