forebrain

The most anterior region of the brain including both the telencephalon and diencephalon. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the forebrain is

The most anterior region of the brain including both the telencephalon and diencephalon. The atlas records it as a nerve at the organ scale in the human body.

Where the forebrain 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 forebrain connects to

The atlas records 13 typed relationships for it, across 5 kinds of connection. part of brain.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the forebrain. 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 FB and prosencephalon. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001890, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: brain.
• A kind of: anatomical structure and regional part of brain.
• contains: basal forebrain, diencephalon, gray matter of forebrain, limbic system, telencephalon and white matter of forebrain.
• contributes to morphology of: brain and diencephalon.
• Develops from: future brain and neuroectoderm.

Questions

Where is the forebrain?

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 forebrain connect to?

Part of: brain.

Is the forebrain 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.