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Atlas of Human Embryos Chapter   Figure
 <   >  search results: secondary umbilical vesicle Search   Fig. 2-6-1 Fig. 2-6-3

amnion, amniotic cavity, amniotic duct, embryonic ectoderm, embryonic endoderm, primitive streak, secondary umbilical vesicle, secondary umbilical vesicle cavity

A section through the caudal part of the embryonic disc showing the primitive streak.

The 13-day embryo with secondary villi (early trilaminar blastocyst)
Stage 6
Age 13 days
Carnegie collection 7801

Heuser et al., 1945.


Keywords: amnion, amniotic cavity, amniotic duct, embryonic ectoderm, embryonic endoderm, primitive streak, secondary umbilical vesicle, secondary umbilical vesicle cavity

Source: Atlas of Human Embryos.