The mastoid antrum (tympanic antrum, antrum mastoideum, Valsalva`s antrum) is an air space 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 aditus to mastoid antrum (entrance to the mastoid antrum). These air spaces function as sound ....
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http://en.wikipedia.org/wiki/Mastoid_antrum
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. ... Synonym: antrum mastoideum, tympanic antrum, Valsalva's antrum. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973
an air space in the mastoid portion of the temporal bone communicating with the middle ear and the mastoid cells.
Found on
http://www.encyclo.co.uk/local/21001
Type: Term Definitions: 1. 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 aditus to the mastoid antrum. Synonyms: antrum mastoideum, tympanic antrum, Valsalva antrum
Found on
http://www.medilexicon.com/medicaldictionary.php?t=5190
No exact match found.
