Ammon's horn in dogs

A part of the brain consisting of a three layered cortex located in the forebrain bordering the medial surface of the lateral ventricle. The term hippocampus is often used synonymously with hippocampal formation which consists of the hippocampus proper or Cornu Ammonis, the dentate gyrus and the subiculum. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the Ammon's horn is

A part of the brain consisting of a three layered cortex located in the forebrain bordering the medial surface of the lateral ventricle. The term hippocampus is often used synonymously with hippocampal formation which consists of the hippocampus proper or Cornu Ammonis, the dentate gyrus and the subiculum. The atlas records it as a nerve at the organ scale in the dog.

Where the Ammon's horn 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 Ammon's horn connects to

The atlas records 16 typed relationships for it, across 6 kinds of connection. part of anatomical entity, brain and hippocampal formation, and 3 more.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the Ammon's horn. 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 Ammon's horn, ammon gyrus, ammon horn, hippocampus major, hippocampus proper and hippocampus proprius, and 4 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001954, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: anatomical entity, brain, hippocampal formation, limbic lobe, limbic system and nervous system.
• A kind of: anatomical structure.
• contributes to morphology of: CA1 field of hippocampus, CA2 field of hippocampus, CA3 field of hippocampus and hippocampal field.
• contains: hippocampus fimbria, hippocampus molecular layer and hippocampus stratum lacunosum.
• connects: hippocampal commissure.
• surrounded by: parahippocampal gyrus.

Questions

Where is the Ammon's horn?

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 Ammon's horn connect to?

Part of: anatomical entity, brain, hippocampal formation, limbic lobe, limbic system and nervous system.

Is the Ammon's horn 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.