![](/drem/stage12/labels2/S93L.gif)
![aortic arch 2, dorsal aorta, ectodermal ring, glossopharyngeal neural crest (CN IX), notochord, pharyngeal arch 1, pharyngeal arch 2, pharyngeal groove 1, pharyngeal groove 2, pharyngeal membrane 1, pharynx, remnant of oropharyngeal membrane, rhombencephalon (Rh. 6), rhombencoel (fourth ventricle), stomodeum](/drem/stage12/Z0/S93N.jpg)
![](/drem/rulerbg.png)
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Carnegie Embryo #8943 | Location: 03-01-01
Keywords: aortic arch 2, dorsal aorta, ectodermal ring, glossopharyngeal neural crest (CN IX), notochord, pharyngeal arch 1, pharyngeal arch 2, pharyngeal groove 1, pharyngeal groove 2, pharyngeal membrane 1, pharynx, remnant of oropharyngeal membrane, rhombencephalon (Rh. 6), rhombencoel (fourth ventricle), stomodeum
Source: The Virtual Human Embryo.