释义 |
round window noun[ Cusually singular ] anatomy specializeduk /ˈraʊnd ˌwɪn.dəʊ/ us /ˈraʊnd ˌwɪn.doʊ/ an opening between the middle ear and the cochlea (= a twisted tube inside the inner ear) that is covered by a membrane(= a thin layer of skin), and that helps deal with changes in pressure: The round window is filled with a fibrous membrane that allows movement of the fluid within the cochlea. The middle ear is an air-filled space, separated from the internal ear by the oval and round windows. The eardrum pushes against the ossicles, which presses fluid in the inner ear against the oval and round windows. There are many potential causes of post-traumatic vertigo, including rupture of the round window membrane. The flexible round window compensates for pressure changes transmitted to the scala tympani. SMART Vocabulary: related words and phrases The ear antihelix antitragus audiological audiology auditory tube cochlea eardrum earlobe incus labyrinth labyrinthitis malleus mastoid cell membranous labyrinth organ of Corti saccule sacculus semicircular canal snug piercing stapedial
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