耳咽管或稱聽管、咽鼓管、歐氏管(英語:Eustachian tube、E-tube或 auditory tube),是連接咽喉和中耳的管道,在解剖學上屬於中耳,位於鼓室下部。成人的耳咽管約3.5厘米長。耳咽管可以維持中耳和外界壓強的平衡,但有時細菌也得以進入中耳,造成中耳炎。
耳咽管是由十六世紀解剖學家巴托羅梅奧·埃烏斯塔基奧(Bartolomeo Eustachi)發現的,因此也叫歐氏管。[1]
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