![](/drem/stage13/labels2/S64L.gif)
![dorsal aorta (aortic arch 4), internal carotid artery, notochord, region of cervical flexure, region of mesencephalic (cephalic) flexure, sulcus limitans](/drem/stage13/Z0/S64N.jpg)
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Carnegie Embryo #836 | Location: 04-03-02
Keywords: dorsal aorta (aortic arch 4), internal carotid artery, notochord, region of cervical flexure, region of mesencephalic (cephalic) flexure, sulcus limitans
Source: The Virtual Human Embryo.