pineal body

A midline, cone like structure located in the dorso-caudal roof of the 3rd ventricle, attached by peduncles to the habenular and posterior commissures. The stalk contains nerve fibers, blood vessels, connective tissue and parenchymal cells (Paxinos, The Rat Central Nervous System, 2nd ed, pg 399). Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the pineal body is

A midline, cone like structure located in the dorso-caudal roof of the 3rd ventricle, attached by peduncles to the habenular and posterior commissures. The stalk contains nerve fibers, blood vessels, connective tissue and parenchymal cells (Paxinos, The Rat Central Nervous System, 2nd ed, pg 399). The atlas records it as a gland at the organ scale in the human body.

Where the pineal body is

It sits within the nervous and endocrine systems. Positioned deliberately as part of this species body plan.

What the pineal body connects to

The atlas records 11 typed relationships for it, across 5 kinds of connection. part of anatomical system, diencephalon and endocrine system, and 1 more.

Supply and innervation

Arterial supply: superior cerebellar artery. Innervation: pineal tract.

Also called

Also recorded as Pi, corpus pineale, glandula pinealis, pineal gland, pineal organ and conarium, and 6 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001905, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: anatomical system, diencephalon, endocrine system and epithalamus.
• A kind of: circumventricular organ, endocrine gland, gland and material anatomical entity.
• contributes to morphology of: epithalamus.
• Innervated by: pineal tract.
• Supplied by: superior cerebellar artery.

Questions

Where is the pineal body?

It sits within the nervous and endocrine systems. Positioned deliberately as part of this species body plan.

What does the pineal body connect to?

Part of: anatomical system, diencephalon, endocrine system and epithalamus.

Is the pineal body 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.