中耳および耳管の形態学的研究-1-正常耳管および中耳粘膜の走査電子顕微鏡的観察 (原田康夫教授開講3周年記念論文集<特集>)

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概要

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• Mucosa of the middle ear and the Eustachian tube were studied by the scanning electron microscope (SEM) in humans, dogs, rabbits and guinea pigs. The following results were obtained:1. Ciliated cells surrounded by nonciliated cells with microvilli were very few on the mucous of the middle ear. Distribution of ciliated cells was very various at the site of the tympanic bulla.2. Near the tympanic orifice of the Eustachian tube, less ciliated cells and numerous goblet cells were observed.3. The middle portion of the tube was found to be the most active. It was here that goblet cells and a large number of ciliated cells were found. Cilia were dense, uniform bent toward the pharyngeal end, and covered by a mucous blanket.4. Near the pharyngeal end, goblet cells were numerous, while cilia were scanty and not uniform in length.5. No significant difference could be seen among the four materials (humans, dogs, rabbits, guinea pigs).Our findings support the concept that middle ear clearance is carried out by an active mucociliary mechanism as in other parts of the upper respiratory system.

• 耳鼻咽喉科臨床学会の論文

著者

• 山下 真理子

  広島大学医学部耳鼻咽喉科学教室

関連論文

• 中耳および耳管の形態学的研究-1-正常耳管および中耳粘膜の走査電子顕微鏡的観察 (原田康夫教授開講3周年記念論文集)
• Eustachian tube mucous membrane damage due to mechanical obstruction.
• Morphological study of middle ear and Eustachian tube. Part-three. Intracellular fine structure of the Eustachian tube.:- Part-three; Intracellular Fine Structure of the Eustachian Tube -

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