| 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: | extracellular matrix | 
|---|---|
| Synonyms: | matrisome, proteinaceous extracellular matrix | 
| Definition: | A structure lying external to one or more cells, which provides structural support, biochemical or biomechanical cues for cells or tissues. | 
| Ontology: | GO: Cellular Component [GO:0031012] QuickGO AmiGO |