![](/drem/stage16/labels2/S52L.gif)
![alar plate of metencephalon (cerebellum), external space, infolded roof plate, mesencephalon, primordial meninx, rhombencoel (fourth ventricle), roof plate, surface ectoderm](/drem/stage16/Z0/S52N.jpg)
![](/drem/rulerbg.png)
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Carnegie Embryo #6517 | Location: 3-01-04
Keywords: alar plate of metencephalon (cerebellum), external space, infolded roof plate, mesencephalon, primordial meninx, rhombencoel (fourth ventricle), roof plate, surface ectoderm
Source: The Virtual Human Embryo.