habenular commissure

A brain commissure that is situated in front of the pineal gland and connects the habenular nucleus on one side of the diencephalon with that on the other side. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the habenular commissure is

A brain commissure that is situated in front of the pineal gland and connects the habenular nucleus on one side of the diencephalon with that on the other side. The atlas records it as a nerve at the organ scale in the human body.

Where the habenular commissure 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 habenular commissure connects to

The atlas records 11 typed relationships for it, across 3 kinds of connection. part of brain, diencephalic white matter and dorsal plus ventral thalamus, and 3 more.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the habenular commissure. 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 HBC, commissura habenularum, commissure habenularum, commissura habenularis, habenular commissure (Haller) and habenular commisure. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001909, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: brain, diencephalic white matter, dorsal plus ventral thalamus, habenula, regional part of brain and telencephalon.
• A kind of: commissure of diencephalon, nervous system commissure, tract of brain and tract of diencephalon.
• connects: habenular nucleus.

Questions

Where is the habenular commissure?

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 habenular commissure connect to?

Part of: brain, diencephalic white matter, dorsal plus ventral thalamus, habenula, regional part of brain and telencephalon.

Is the habenular commissure the same in other species?

Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.