Skip to main content

Unfortunately we don't fully support your browser. If you have the option to, please upgrade to a newer version or use Mozilla Firefox, Microsoft Edge, Google Chrome, or Safari 14 or newer. If you are unable to, and need support, please send us your feedback.

Elsevier
Publish with us
Stapes
Skeletal System

Stapes

Stapes

Read more

Quick Facts

Location: Tympanic cavity of the middle ear.

Bone Type: Irregular bone.

Key Features: Head, neck, base, and anterior and posterior limbs.

Articulates With: Incus.

Arterial Supply: Anterior tympanic and stylomastoid arteries.

Complete Anatomy
The world's most advanced 3D anatomy platform
Try it for Free
Related parts of the anatomy

Key Features & Anatomical Relations

The stapes is the smallest of the three auditory ossicles, the other two being the malleus and incus. It is a small, stirrup-like bone that is found in the tympanic cavity of the middle ear in the temporal bone. It is classified as an irregular bone and includes the following bony features:

- parts: head, neck, base, and anterior and posterior limbs;

- landmarks: articular facet of head of stapes.

More information regarding these bony features can be found in the Parts and Landmarks tabs for this bone.

The stapes is located posteromedial to the incus, articulates with the incus at the incudostapedial joint and attaches to the vestibular window of the labyrinthine wall.

Ossification

Ossification of the stapes occurs at one ossification center, which is found in its base and appears in utero during the fourth month. The stapes is fully developed by the time of birth (Standring, 2016).

List of Clinical Correlates

- Dislocation

- Incus ankylosis

- Cholesteatoma

References

Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edn.: Elsevier Limited.

Learn more about this topic from other Elsevier products

Stapes

ScienceDirect image

The stapes of the middle ear is a splanchnocranial element, as are the quadrate and the epipterygoid;

Explore on ScienceDirect(opens in new tab/window)

Complete Anatomy

The world's most advanced 3D anatomy platform

Complete Anatomy