![](/drem/stage18/labels/S166L.gif)
![artifact separation(s), diencephalon, edge of third ventricle, oculomotor nerve (CN III), roof plate, sulcus limitans, third ventricle, trochlear nerve (CN IV)](/drem/stage18/Z0/S166N.jpg)
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Carnegie Embryo #4430 | Location: 6-4
Keywords: artifact separation(s), diencephalon, edge of third ventricle, oculomotor nerve (CN III), roof plate, sulcus limitans, third ventricle, trochlear nerve (CN IV)
Source: The Virtual Human Embryo.