stapes bone in dogs

The stapes or stirrup is the stirrup-shaped small bone or ossicle in the middle ear which is attached to the incus laterally and to the fenestra ovalis, the 'oval window' medially. The oval window is adjacent to the vestibule of the inner ear. The stapes is the smallest and lightest bone in the human body. The stapes transmits the sound vibrations from the incus to the membrane of the inner ear inside the fenestra ovalis. The stapes is also stabilized by the stapedius muscle, which is innervated by the facial nerve. In non-mammalian vertebrates, the bone homologous to the stapes is usually called the columella; however, in reptiles, either term may be used[WP,unvetted]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the stapes bone is

The stapes or stirrup is the stirrup-shaped small bone or ossicle in the middle ear which is attached to the incus laterally and to the fenestra ovalis, the 'oval window' medially. The oval window is adjacent to the vestibule of the inner ear. The stapes is the smallest and lightest bone in the human body. The stapes transmits the sound vibrations from the incus to the membrane of the inner ear inside the fenestra ovalis. The stapes is also stabilized by the stapedius muscle, which is innervated by the facial nerve. In non-mammalian vertebrates, the bone homologous to the stapes is usually called the columella; however, in reptiles, either term may be used[WP,unvetted]. The atlas records it as a bone at the organ scale in the dog.

Where the stapes bone is

It sits in the head, within the skeletal and sensory systems. 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 stapes bone connects to

The atlas records 14 typed relationships for it, across 8 kinds of connection. part of anatomical structure, anatomical system and middle ear, and 1 more.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the stapes bone. 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 stirrup, columella, columella auris, columellare, interstapediale and mediostapediale, and 7 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001687, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: anatomical structure, anatomical system, middle ear and skeletal system.
• A kind of: anatomical structure, auditory ossicle bone, endochondral bone and skeletal element.
• Attaches to: stapedius muscle.
• composed of: bone tissue.
• Develops from: Reichert's cartilage.
• inserts into: stapedius muscle.
• contributes to morphology of: stapes base.
• contains: stapes base.

Questions

Where is the stapes bone?

It sits in the head, within the skeletal and sensory systems. 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 stapes bone connect to?

Part of: anatomical structure, anatomical system, middle ear and skeletal system.

Is the stapes bone 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.