![](/drem/stage9/labels2/S25L.gif)
![aortic arch 2, cardiac jelly, foregut primordium (lumen), head mesenchyme, mesencephalon primordium (M), notochordal plate, primordial epimyocardium, primordial myocardium, primordial pericardial cavity](/drem/stage9/Z0/S25N.jpg)
![](/drem/rulerbg.png)
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Carnegie Embryo #3709 | Location: 01-03-04
Keywords: aortic arch 2, cardiac jelly, foregut primordium (lumen), head mesenchyme, mesencephalon primordium (M), notochordal plate, primordial epimyocardium, primordial myocardium, primordial pericardial cavity
Source: The Virtual Human Embryo.