tegmen tympani

Introduction

The roof of the middle ear, formed by the thinned anterior surface of the petrous portion of the temporal bone. Its anterior edge is inserted into the petrosquamous fissure so that it can be seen as a wedge of bone subdividing that fissure into a squamotympanic & a petrotympanic fissure.

More general terms

• ear structure

Additional terms

• middle ear
• tegmen
• tympanosquamous fissure