Promontory of tympanic cavity
The promontory of the tympanic cavity, also known as the cochlear promontory is a rounded hollow prominence, formed by the projection outward of the first turn of the cochlea.
| Promontory of tympanic cavity | |
|---|---|
 View of the inner wall of the tympanum. (Promontory visible near center.) | |
| Details | |
| Identifiers | |
| Latin | promontorium tympani |
| TA98 | A15.3.02.011 |
| TA2 | 6899 |
| FMA | 77694 |
| Anatomical terminology | |
It is placed between the oval window and the round window, and is furrowed on its surface by small grooves, for the lodgement of branches of the tympanic plexus.
A minute spicule of bone frequently connects the promontory to the pyramidal eminence.
Additional images
Coronal section of right temporal bone.
The medial wall and part of the posterior and anterior walls of the right tympanic cavity, lateral view.
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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