Mastoid antrum

Mastoid antrum

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.

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External links

  • - "Illustration of the continuity of the nasopharynx with the middle ear cavity via the auditory tube."

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