![](/drem/stage13/labels2/S56L.gif)
![dermatomyotome 2 (O-2) , dermatomyotome 3 (O-3) , dorsal aorta, epipharyngeal placode 2, epipharyngeal placode 3, junction of aortic arch 2 and dorsal aorta, notochord, pharyngeal arch 1, pharyngeal arch 2, pharyngeal groove 1, pharyngeal groove 2, pharyngeal pouch 1, pharyngeal pouch 2, precardinal vein, sclerotome](/drem/stage13/Z0/S56N.jpg)
![](/drem/rulerbg.png)
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Carnegie Embryo #836 | Location: 04-01-06
Keywords: dermatomyotome 2 (O-2) , dermatomyotome 3 (O-3) , dorsal aorta, epipharyngeal placode 2, epipharyngeal placode 3, junction of aortic arch 2 and dorsal aorta, notochord, pharyngeal arch 1, pharyngeal arch 2, pharyngeal groove 1, pharyngeal groove 2, pharyngeal pouch 1, pharyngeal pouch 2, precardinal vein, sclerotome
Source: The Virtual Human Embryo.