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a conical projection posterior to the vestibular window in the middle ear; it is hollow and contains the stapedius muscle.
Farlex Partner Medical Dictionary © Farlex 2012
An elevation on the mastoid wall of the tympanic cavity. It contains a cavity through which the stapedius muscle passes.Synonym: pyramid of the tympanum
See also: eminence
Medical Dictionary, © 2009 Farlex and Partners