Promontory of the tympanic cavity

Promontory of tympanic cavity
View of the inner wall of the tympanum. (Promontory visible near center.)
Details
Identifiers
Latin	promontorium tympani
Dorlands /Elsevier	p_36/12669937
TA	A15.3.02.011
FMA	77694
Anatomical terminology []

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.

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.

Coronal section of right temporal bone.

The medial wall and part of the posterior and anterior walls of the right tympanic cavity, lateral view.

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)