cranial nerve II in dogs
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]. Every claim on this page comes from the Leumas anatomy graph and carries its source.
What the cranial nerve II is
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]. The atlas records it as a nerve at the organ scale in the dog.
Where the cranial nerve II is
It sits in the head, within the nervous and sensory systems. Only the region is known. The position shown is somewhere plausible inside it and nothing more.
What the cranial nerve II connects to
The atlas records 10 typed relationships for it, across 6 kinds of connection. part of anatomical entity, central nervous system and head, and 2 more.
Supply and innervation
This dataset asserts no arterial supply, venous drainage or innervation for the cranial nerve II. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.
Also called
Also recorded as 2n, optic nerve, 02 optic nerve, cranial II, nervus opticus and nervus opticus [II], and 7 more. Searching any of those names reaches this page.
Source
Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0000941, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.
- Part of: anatomical entity, central nervous system, head, nervous system and visual system.
- A kind of: anatomical structure.
- Innervates: retina.
- Develops from: retinal neural layer.
- overlaps: nerve fiber layer of retina.
- transports: optic foramen.
Questions
Where is the cranial nerve II?
It sits in the head, within the nervous and sensory systems. Only the region is known. The position shown is somewhere plausible inside it and nothing more.
What does the cranial nerve II connect to?
Part of: anatomical entity, central nervous system, head, nervous system and visual system.
Is the cranial nerve II the same in other species?
This page describes the dog. The human record of the same structure sits beside it on /compare, over one shared model rather than two atlases built separately.