|presumptive central nervous system
|An intermediate stage in the development of the central nervous system present during the segmentation period; the neural rod is roughly cylindrical in shape, forms from the neural keel, and is not yet hollowed out into the neural tube.
|Segmentation:5-9 somites (11.66h-14.0h)
|Segmentation:14-19 somites (16.0h-19.0h)
|Anatomy Ontology [ZFA:0000133]
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