Pyramidal eminence
The pyramidal eminence (pyramid) is a conical projection in the middle ear. It is situated immediately behind the fenestra vestibuli (oval window), and in front of the vertical portion of the facial canal; it is hollow, and contains the Stapedius muscle; its summit projects forward toward the fenestra vestibuli, and is pierced by a small aperture which transmits the tendon of the muscle.
| Pyramidal eminence | |
|---|---|
 The medial wall and part of the posterior and anterior walls of the right tympanic cavity, lateral view. (Pyramidal eminence labeled at left, second from bottom.) | |
| Details | |
| Identifiers | |
| Latin | eminentia pyramidalis |
| TA | A15.3.02.024 |
| FMA | 77732 |
| Anatomical terminology | |
The cavity in the pyramidal eminence is prolonged downward and backward in front of the facial canal, and communicates with it by a minute aperture which transmits a twig from the facial nerve to the Stapedius muscle.
References
This article incorporates text in the public domain from page 1042 of the 20th edition of Gray's Anatomy (1918)
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