![](/drem/stage9/labels2/S27L.gif)
![amnion attachment, amniotic cavity, aortic arch 2, cardiac jelly, foregut primordium (lumen), mesencephalon primordium (M), primordial endocardium in midline, primordial left dorsal aorta, primordial pericardial cavity, somatopleuric mesoderm, splanchnopleuric mesoderm (epimyocardium)](/drem/stage9/Z0/S27N.jpg)
![](/drem/rulerbg.png)
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Carnegie Embryo #3709 | Location: 01-03-06
Keywords: amnion attachment, amniotic cavity, aortic arch 2, cardiac jelly, foregut primordium (lumen), mesencephalon primordium (M), primordial endocardium in midline, primordial left dorsal aorta, primordial pericardial cavity, somatopleuric mesoderm, splanchnopleuric mesoderm (epimyocardium)
Source: The Virtual Human Embryo.