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55
explaint he posterior wall.
inferior part :
-a bony partition between the tympanic cavity and mastoid air cells. Superiorly:
- the epitympanic recess is continuous with the aditus (L. entrance, access) to the mastoid antrum, connecting the tympanic cavity to the mastoid air cells.
The canal containing the facial nerve descends between the mastoid wall and the antrum, medial to the aditus (the mastoid antrum (L. cave), is a common cavity within the mastoid process of the temporal bone into which mastoid air
cells open.
-a bony partition between the tympanic cavity and mastoid air cells. Superiorly:
- the epitympanic recess is continuous with the aditus (L. entrance, access) to the mastoid antrum, connecting the tympanic cavity to the mastoid air cells.
The canal containing the facial nerve descends between the mastoid wall and the antrum, medial to the aditus (the mastoid antrum (L. cave), is a common cavity within the mastoid process of the temporal bone into which mastoid air
cells open.
