![](/drem/stage13/labels2/S109L.gif)
![C-3 spinal ganglion primordium, caudal edge of optic vesicle, common atrioventricular canal (isthmus), common cardinal vein, dermatomyotome 7 (C-3), dorsal aorta, endocardium, epimyocardium, esophagus primordium, interventricular sulcus, left atrium, notochord, postcardinal vein, prosencephalon (telencephalic part), prosencoel (third ventricle), sinu-atrial foramen, sinus venosus, trabecular part of left ventricle](/drem/stage13/Z0/S109N.jpg)
![](/drem/rulerbg.png)
0 μm
Carnegie Embryo #836 | Location: 07-01-05
Keywords: C-3 spinal ganglion primordium, caudal edge of optic vesicle, common atrioventricular canal (isthmus), common cardinal vein, dermatomyotome 7 (C-3), dorsal aorta, endocardium, epimyocardium, esophagus primordium, interventricular sulcus, left atrium, notochord, postcardinal vein, prosencephalon (telencephalic part), prosencoel (third ventricle), sinu-atrial foramen, sinus venosus, trabecular part of left ventricle
Source: The Virtual Human Embryo.