| Name: | locus coeruleus |
|---|---|
| Synonyms: | loci coeruleus |
| Definition: | The locus coeruleus is a widely projecting isthmal noradrenergic nucleus. It consists of between three and ten neurons, most of which have multiple, bilaterally projecting axons. |
| Ontology: | Anatomy Ontology [ZFA:0000539] |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |