The pyramidal eminence is a hollow conical projection upon the posterior wall of the tympanic cavity of the middle ear.

The stapedius muscle arises in the hollow of the eminence and its tendon exits through its apex.

[citation needed] The cavity in the pyramidal eminence is prolonged inferoposteriorly anterior to the facial canal, with which it communicates by a minute aperture which transmits the nerve to the stapedius from the facial nerve (CN VII).

[citation needed] The space lateral to the pyramidal eminence is the facial recess, which is accessed during surgery for cochlear implant.

This article incorporates text in the public domain from page 1042 of the 20th edition of Gray's Anatomy (1918)