THE NORMAL lining of the middle ear is considered by most authorities as consisting of nonciliated, flat or cuboidal cells,1-3 and is thought to lack mucus-secreting elements.4-13 However, Polvogt4 states that cilia pass at times from the eustachian tube into the tympanum. Kolmer and Mellendorff12 saw cilia in the hypotympanum. Buch and Jorgensen13 as well as Lawson14 state that the tympanic cavity may be ciliated "in places." Maximov and Bloom15 state "near the opening of the auditory tube and tympanic membrane, it is (the epithelium) cuboidal or columnar and provided with cilia. The existence of glands is generally denied." Senturia16 described cilia in the tympanic cavity of dogs as well as goblet cells near the tube. Since it is known that lipoidal17,18 and fluorescent19 materials, licopodium seeds,20 starch, etc,21 are cleared rapidly from the middle ear through the eustachian tube into the nasopharynx, the assumption that cilia are absent or
SADE J. Middle Ear Mucosa. Arch Otolaryngol. 1966;84(2):137–143. doi:10.1001/archotol.1966.00760030139005
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