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250 大学院医歯学総合研究科(医) = Graduate School of Medical and Dental Sciences (Medical) >
20 紀要 = Departmental Bulletin Paper >
02 新潟医学会雑誌 = Niigata medical journal >

 

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Title :中耳腔の換気のメカニズムとその障害
Title alternative :Homeostatic Mechanics and Injury of the Middle Ear Ventilation
Authors :山本, 裕
Publisher :新潟医学会
Issue Date :Sep-2013
Journal Title :新潟医学会雑誌
Volume :127
Issue :9
Start Page :453
End Page :460
ISSN :0029-0440
Abstract :Recent studies have shown that the gas exchange through the middle ear (ME) mucosa as well as through the Eustachian tube plays a very important role in the regulation of ME pressure. In this paper, homeostatic mechanics of the Eustachian tube and those of the gas exchange function through the ME mucosa were reviewed. Then the relationship between those functions and the morphological characteristics of the ME cavity were discussed. The gas exchange function through the ME mucosa, especially mucosa of the mastoid cavity was confirmed in normal ears, but the function was reduced in inflamed ears. The human ME cavity had a large surface area corresponding to a large volume due to the presence of the air cell system. The gas exchange function through the ME mucosa depended on the surface area. These suggested that the morphological characteristics of the ME cavity provides a great advantage in regulating the ME pressure by transmucosal gas exchange function.
Keywords :Eustachian tube
transmucosal gas exchange
mastoid cavity
surface area
volume
Type Local :紀要論文
Language :jpn
Format :application/pdf
URI :http://hdl.handle.net/10191/36120
fullTextURL :http://dspace.lib.niigata-u.ac.jp/dspace/bitstream/10191/36120/1/127(9)_453-460.pdf
Appears in Collections:02 新潟医学会雑誌 = Niigata medical journal

Please use this identifier to cite or link to this item: http://hdl.handle.net/10191/36120