| Phenotype: | cranial nerve II absent, 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: | cranial nerve II |
|---|---|
| Synonyms: | CN-II, optic, optic nerve |
| Definition: | Cranial nerve which is comprised of retinal ganglion cell axons running posterior medially towards the optic chiasm, at which the axons cross the midline and after which the structure is termed the optic tract. |
| Ontology: | Anatomy Ontology [ZFA:0000435] |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |