耳咽管 Eustachian tube
（重定向自Pharyngotympanic tube）
耳咽管或称听管、咽鼓管、欧氏管(Eustachian tube，E－tube or auditory tube)，是连接咽喉和中耳的管道，在解剖学上属于中耳。成人的耳咽管约3.5厘米长。耳咽管可以维持中耳和外界压强的平衡，但有时细菌也得以进入中耳，造成中耳炎。
耳咽管是由十六世纪解剖学家Bartolomeo Eustachi发现的，因此也叫欧氏管。
Pharyngotympanic tube
中文百科
英语百科
Eustachian tube 耳咽管
（重定向自Pharyngotympanic tube）
The Eustachian tube /juːˌsteɪ.ʃənˈtjuːb/, also known as the auditory tube or pharyngotympanic tube, is a tube that links the nasopharynx to the middle ear. It is a part of the middle ear. In adult humans the Eustachian tube is approximately 35 mm (1.4 in) long and 3 mm (0.12 in) in diameter. It is named after the sixteenth-century anatomist Bartolomeo Eustachi.
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