| Name: | neural keel |
|---|---|
| Synonyms: | presumptive central nervous system |
| Definition: | An intermediate stage (between the neural plate and neural rod) during the early segmentation period in the morphogenesis of the central nervous system primordium; the keel is roughly triangular shaped in cross section. |
| Ontology: | Anatomy Ontology [ZFA:0000131] |
| Name: | floor plate |
|---|---|
| Synonyms: | floorplate, fp |
| Definition: | Multi-tissue structure that is the ventral-most aspect of the developing neural tube. The floor plate is a specialized glial structure with secretory function that spans the rostral-caudal axis from the midbrain to the tail regions. The floor plate is one of first structures that differentiate in the developing nervous system. |
| Ontology: | Anatomy Ontology [ZFA:0000022] |