Opis

The tegmentum tympani (tegmental wall, tegmental roof ) is formed by a thin plate of bone, the tegmen tympani, which separates the cranial and tympanic cavities.

It is situated on the anterior (frontal) surface of the petrous portion of the temporal bone close to its angle of junction with the squama temporalis; it is prolonged backward so as to roof in the tympanic antrum, and forward to cover in the semicanal for the tensor tympani muscle. Its lateral edge corresponds with the remains of the petrosquamous suture. Atticus is the part of the tegmentum tympani where the stapes and incus are attached.


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