![](/drem/stage12/labels2/S243L.gif)
![amnion, amnion attachment, amniotic cavity, cephalic intestinal portal, dermatomyotome 7 (C-3), dorsal aorta, left umbilical vein, left vitelline (omphalomesenteric) vein, nucleated red blood cells, peritoneal cavity, right umbilical vein, right vitelline (omphalomesenteric) vein, umbilical vesicle cavity](/drem/stage12/Z0/S243N.jpg)
![](/drem/rulerbg.png)
0 μm
Carnegie Embryo #8943 | Location: 05-06-01
Keywords: amnion, amnion attachment, amniotic cavity, cephalic intestinal portal, dermatomyotome 7 (C-3), dorsal aorta, left umbilical vein, left vitelline (omphalomesenteric) vein, nucleated red blood cells, peritoneal cavity, right umbilical vein, right vitelline (omphalomesenteric) vein, umbilical vesicle cavity
Source: The Virtual Human Embryo.