| Phenotype: | optic tectum has fewer parts of type retinal ganglion cell axon terminus, abnormal |
|---|---|
| Note: | This statement combines anatomy and/or ontology terms with phenotype quality terms to create a complete phenotype (EQ) statement. For detailed information on individual terms, click the hyperlinked term name. |
| 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: | has fewer parts of type |
|---|---|
| Synonyms: | decreased number of, has decreased number of, has fewer physical parts of type |
| Definition: | The bearer of this quality has_part < n AND has_part > 0 of the indicated entity type, where n is the normal amount for a comparable organism. Note that the bearer of the quality is the whole, not the part. Formally: If a bearer entity e has fewer parts of type X at time t, then the number of instances x of X at t such that x part_of e is < n, where n is either the normal number for comparable entities, or n is stated explicitly. |
| Ontology: | Phenotypic Quality Ontology [PATO:0002001] |
| Name: | retinal ganglion cell |
|---|---|
| Synonyms: | gangliocyte, RGC |
| Definition: | The set of neurons that receives neural inputs via bipolar, horizontal and amacrine cells. The axons of these cells make up the optic nerve. |
| Ontology: | Anatomy Ontology [ZFA:0009310] |
| Name: | axon terminus |
|---|---|
| Synonyms: | axon terminal, axon terminal specialization, motor endplate, nerve ending |
| Definition: | Terminal inflated portion of the axon, containing the specialized apparatus necessary to release neurotransmitters. The axon terminus is considered to be the whole region of thickening and the terminal button is a specialized region of it. |
| Ontology: | GO: Cellular Component [GO:0043679] QuickGO AmiGO |