![chorionic cavity, cytotrophoblast, extra-embryonic mesoblast, fibrous coagulum, primary umbilical vesicle cavity, syncytiotrophoblast, uterine cavity](/drem/stage5c/Z2/S53Z2.jpg)
![](/drem/rulerbg.png)
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Carnegie Embryo #7700 | Location: 05-02-04
Keywords: chorionic cavity, cytotrophoblast, extra-embryonic mesoblast, fibrous coagulum, primary umbilical vesicle cavity, syncytiotrophoblast, uterine cavity
Source: The Virtual Human Embryo.