![](/drem/stage11/labels2/S304L.gif)
![amnion attachment, amniotic cavity, communication between peritoneal cavity and extra-embryonic coelom, dorsal aorta, intermediate mesenchyme, notochord, peritoneal cavity, right umbilical vein, somite 11 (C-7), umbilical vesicle cavity, vitelline (omphalomesenteric) vein](/drem/stage11/Z0/S304N.jpg)
![](/drem/rulerbg.png)
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Carnegie Embryo #6344 | Location: 05-04-04
Keywords: amnion attachment, amniotic cavity, communication between peritoneal cavity and extra-embryonic coelom, dorsal aorta, intermediate mesenchyme, notochord, peritoneal cavity, right umbilical vein, somite 11 (C-7), umbilical vesicle cavity, vitelline (omphalomesenteric) vein
Source: The Virtual Human Embryo.