| Name: | optic tectum | 
|---|---|
| Synonyms: | dorsal midbrain, mesencephalic tectum, tectal lobe, tectum, tectum opticum | 
| Definition: | Multi-tissue structure that is the dorsal part of the midbrain and develops from the alar plate and is the most complex layered structure in the zebrafish brain. | 
| Ontology: | Anatomy Ontology [ZFA:0000445] | 
| Name: | oligodendrocyte | 
|---|---|
| Synonyms: | oligodendroglia | 
| Definition: | A class of large neuroglial (macroglial) cells in the central nervous system. Form the insulating myelin sheath of axons in the central nervous system. | 
| Ontology: | Anatomy Ontology [ZFA:0009076] |