![](/drem/stage9/labels/S18L.gif)
![amnion attachment, aortic arch 1, foregut primordium (lumen), neural fold of prosencephalon primordium (P), primordial left dorsal aorta, primordial pericardial cavity, primordial right dorsal aorta](/drem/stage9/Z0/S18N.jpg)
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Carnegie Embryo #3709 | Location: 01-02-11
Keywords: amnion attachment, aortic arch 1, foregut primordium (lumen), neural fold of prosencephalon primordium (P), primordial left dorsal aorta, primordial pericardial cavity, primordial right dorsal aorta
Source: The Virtual Human Embryo.