3.40 middle ear; tympanic cavity; tympanum. Air-filled cavity within the mastoid portion of the temporal bone typically described as containing the eardrum and ossicles and inner opening of the Eustachian tube.
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3.40 middle ear; tympanic cavity; tympanum. Air-filled cavity within the mastoid portion of the temporal bone typically described as containing the eardrum and ossicles and inner opening of the Eustachian tube.
« Back to Standards Terminolgy Index