![](/drem/stage18/labels2/S188L.gif)
![artifact separation(s), diencephalon, metencephalon, myelencephalon, rhombencoel (fourth ventricle), roof plate, subarachnoid space, third ventricle](/drem/stage18/Z0/S188N.jpg)
![](/drem/rulerbg.png)
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Carnegie Embryo #4430 | Location: 6-26
Keywords: artifact separation(s), diencephalon, metencephalon, myelencephalon, rhombencoel (fourth ventricle), roof plate, subarachnoid space, third ventricle
Source: The Virtual Human Embryo.