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Mastoid antrum



Bone: Mastoid antrum
Coronal section of right temporal bone. ("Tympanic antrum" labeled at upper left.)
The medial wall and part of the posterior and anterior walls of the right tympanic cavity, lateral view. ("Mastoid antrum" labeled at upper left, in dark circle.)
Latin antrum mastoideum
Gray's subject #230 1042
Dorlands/Elsevier a_50/12143566

Mastoid antrum (or tympanic antrum) is a cavity in the petrous portion of the temporal bone, communicating posteriorly with the mastoid cells and anteriorly with the epitympanic recess of the middle ear via the aperture of the mastoid antrum.

Additional images

 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Mastoid_antrum". A list of authors is available in Wikipedia.
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