Phenotype: cranial nerve II decreased diameter, 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: decreased diameter
Synonyms:
Definition: A diameter which is relatively small.
Ontology: Phenotypic Quality Ontology [PATO:0001715]