loading...| Preferred Name |
cranial nerve II |
| Synonyms |
optic optic nerve [II] nervus opticus [II] CN-II cranial II 2n second cranial nerve nerve II 02 optic nerve optic nerve nervus opticus optic II nerve optic II |
| Definitions |
Cranial nerve fiber tract which is comprised of retinal ganglion cell axons running posterior medially towards the optic chiasm, at which some of the axons cross the midline and after which the structure is termed the optic tract. Transmits visual information from the retina to the brain[ZFA]. |
| ID |
http://purl.obolibrary.org/obo/UBERON_0000941 |
| database_cross_reference |
BIRNLEX:1640 EFO:0004258 BAMS:IIn EHDAA:6788 Wikipedia:Optic_nerve SCTID:180938001 UMLS:C0029130 HBA:9307 AAO:0010345 XAO:0000188 TAO:0000435 VHOG:0000543 neuronames:289 BAMS:nII MESH:D009900 MA:0001097 EMAPA:17575 EHDAA2:0001313 DHBA:15544 ZFA:0000435 CALOHA:TS-0713 GAID:831 MBA:848 BAMS:2n FMA:50863 NCIT:C12761 |
| definition |
Cranial nerve fiber tract which is comprised of retinal ganglion cell axons running posterior medially towards the optic chiasm, at which some of the axons cross the midline and after which the structure is termed the optic tract. Transmits visual information from the retina to the brain[ZFA]. |
| develops_from | |
| editor note |
Do not classify under 'cranial nerve', as this is not a true nerve - should be classified as evaginated sensory afferent[ISBN:0471888893] |
| extends_fibers_into | |
| external_definition |
Fibrous, somatic sensory element covered by a fibrous connective-tissue sheath and is continuous with the layer of nerve cells on the inner surface of the eye.[AAO] A collection of nerve cells that project visual information from the eyes to the brain. (Source: BioGlossary, www.Biology-Text.com)[TAO] |
| external_ontology_notes |
(relaion to eye): MA, XAO, AAO and BTO consider this part of the eye. This is in contrast to GO, FMA, EHDAA2 (FMA has a class 'intra-ocular part of optic nerve' which represents the region of overlap). Relation to brain: part of diencephalon in EHDAA2, ZFA. In NIF, has the optic nerve root as part, which is a feature part of the diencphalon |
| has broad synonym |
2n optic nerve |
| has exact synonym |
optic nerve [II] nervus opticus [II] cranial II second cranial nerve 02 optic nerve nervus opticus optic II nerve optic II |
| has related synonym |
optic CN-II nerve II |
| has_obo_namespace |
uberon |
| homology_notes |
(...) an essentially similar sequence of events occurs during the embryonic development of the vertebrate eye. The eye initially develops as a single median evagination of the diencephalon that soon bifurcates to form the paired optic vesicles. As each optic vesicle grows towards the body surface, its proximal part narrows as the optic stalk, and its distal part invaginates to form a two-layered optic cup (reference 1); The (optic) stalk persists as the optic nerve (reference 2).[well established][VHOG] |
| id |
UBERON:0000941 |
| in_subset |
http://purl.obolibrary.org/obo/uberon/core#uberon_slim http://purl.obolibrary.org/obo/uberon/core#pheno_slim |
| innervates | |
| label |
cranial nerve II |
| notation |
UBERON:0000941 |
| part_of | |
| prefLabel |
cranial nerve II |
| treeView |
http://purl.obolibrary.org/obo/UBERON_0003902 |
| subClassOf |