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fenestra vestibuli, fenestra ovalis
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View of the inner wall of the tympanum (label is 'fen oval' - black circle near top)
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Right osseous labyrinth Lateral view (label is 'vestibular fenestra' - black circle near center)
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Oval+Window
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The (or '''vestibular window''') is a membrane-covered opening which leads from the
Middle Ear to the
Vestibule of the inner
Ear .
Vibrations arriving at the
Eardrum are transmitted via the interacting
Ossicles from the middle ear through the membrane of the ''fenestra ovalis'' to the inner ear.
It is a
Reniform (kidney-shaped) opening leading from the tympanic cavity into the vestibule of the internal ear; its long diameter is horizontal, and its convex border is upward. In the recent state it is occupied by the base of the
Stapes , the circumference of which is fixed by the annular ligament to the margin of the
Foramen .
