Promontory of tympanic cavity
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| Promontory of tympanic cavity | |
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| View of the inner wall of the tympanum. (Promontory visible near center.) | |
| Latin | promontorium tympani |
| Gray's | subject #230 1042 |
The promontory of the tympanic cavity, better known as the cochlear promontory is a rounded hollow prominence, formed by the projection outward of the first turn of the cochlea.
It is placed between the fenestrae, 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 [edit]
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Coronal section of right temporal bone.
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The medial wall and part of the posterior and anterior walls of the right tympanic cavity, lateral view.
External links [edit]
- lesson3 at The Anatomy Lesson by Wesley Norman (Georgetown University)
This article incorporates text from a public domain edition of Gray's Anatomy.
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