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耳朵可分為三個不同的部位:外耳、中耳和內耳。聲波先通過外耳進入耳道,然後再震動鼓膜。 鼓膜與位於中耳的三塊小骨骼相連。震動波傳到內耳的耳蝸,經過處理後再傳送到大腦。 發生於中耳的耳朵感染症。通常中耳內的液體,會往下流入歐氏管,再進入喉嚨後方。當耳朵受到感染時,中耳所製造的液體,無法經由歐氏管適當排出。 液體積聚會造成疼痛及暫時性的聽力喪失,可能導致中耳感染。因為歐氏管的長度和位置,兒童較容易罹患中耳炎。中耳炎必須接受醫師治療。
Duration: 01:04
Published: 2016/2/25
Blausen Medical
Scientific and Medical Animations
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