optic chiasma in dogs

A decussation of the diencephalon where the fibers of the optic nerve cross. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the optic chiasma is

A decussation of the diencephalon where the fibers of the optic nerve cross. The atlas records it as a nerve at the organ scale in the dog.

Where the optic chiasma is

It sits within the nervous system. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What the optic chiasma connects to

The atlas records 5 typed relationships for it, across 2 kinds of connection. part of central nervous system, diencephalon and nervous system, and 1 more.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the optic chiasma. 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 chiasma opticum, decussation of optic nerve fibers, optic chiasm, chiasma, chiasma nervorum opticorum and optic chiasm (Rufus of Ephesus). Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0000959, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

Questions

Where is the optic chiasma?

It sits within the nervous system. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What does the optic chiasma connect to?

Part of: central nervous system, diencephalon, nervous system and white matter.

Is the optic chiasma 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.