third ventricle in dogs

Part of the ventricular system of the brain, forming a single large cavity in the midline of the diencephalon; it is continuous with the lateral ventricles through the interventricular foramen and the fourth ventricle through the cerebral aqueduct. (Maryann Martone). Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the third ventricle is

Part of the ventricular system of the brain, forming a single large cavity in the midline of the diencephalon; it is continuous with the lateral ventricles through the interventricular foramen and the fourth ventricle through the cerebral aqueduct. (Maryann Martone). The atlas records it as a tissue at the tissue scale in the dog.

Where the third ventricle 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 third ventricle connects to

The atlas records 11 typed relationships for it, across 5 kinds of connection. part of diencephalon.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the third ventricle. 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 3rd ventricle, ventriculus diencephali, diencephalic vesicle, diencephalic ventricle and ventriculus tertius cerebri. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002286, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: diencephalon.
• A kind of: brain ventricle.
• contains: choroid plexus of third ventricle, infundibular recess of 3rd ventricle, optic recess of third ventricle, tela choroidea of third ventricle, third ventricle choroid plexus epithelium and third ventricle choroid plexus stroma, and 1 more.
• contributes to morphology of: diencephalon.
• overlaps: interventricular foramen of CNS.

Questions

Where is the third ventricle?

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 third ventricle connect to?

Part of: diencephalon.

Is the third ventricle 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.