tegmen tympani

(redirected from roof of tympanum)

tegmen

 [teg´men] (L.)
a covering structure or roof.
tegmen tym´pani the thin layer of bone that forms the roof of the tympanic cavity, separating it from the cranial cavity.

teg·men tym·'pa·ni

[TA]
the roof of the middle ear, formed by the thin 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 and a petrotympanic fissure.
Synonym(s): roof of tympanum

teg·men tym·pa·ni

(teg'men tim'pan-ī) [TA]
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 and a petrotympanic fissure.

tegmen

pl. tegmina [L.] a covering structure or roof.

tegmen tympani
1. the thin layer of bone separating the tympanic antrum from the cranial cavity.
2. the roof of the tympanic cavity, related to part of the petrous portion of the temporal bone.