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  • Title: Ciliary activity of the middle ear lining in guinea pigs.
    Author: Ohashi Y, Nakai Y, Kihara S.
    Journal: Ann Otol Rhinol Laryngol; 1985; 94(4 Pt 1):419-23. PubMed ID: 4026127.
    Abstract:
    Since the middle ear lining is an extension and a modification of the respiratory epithelium, it is conceivable that it has a mucociliary system and plays an important role in clearing the middle ear cavity. It has already been noted in morphological investigations that the middle ear mucosa has ciliated cells. To our knowledge, however, ciliary activity has never been observed directly. In our research, we used the photoelectric method to study ciliary activity of the middle ear mucosa directly and quantitatively. We made special reference to the frequency of ciliary beating at various sites within the middle ear cavity. Ciliary activity was found to exist in the eustachian tube and the middle ear, the same as in other respiratory organs, and this activity was stronger in cells distal to the eustachian tube.
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