oval window


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oval window

[′ō·vəl ′win·dō]
(anatomy)
The membrane-covered opening into the inner ear of tetrapods, to which the ossicles of the middle ear are connected.

oval window

A window in the shape of an ellipse, or in a shape between an ellipse and a circle.
See also: French window

oval window

A window having the shape of an ellipse or a shape between an ellipse and a circle.
References in periodicals archive ?
Manifesting initially in the so-called fenestral phase with resorptive changes at the level of the oval window, otosclerosis progresses over time to involve the cochlear promontory and otic capsule.
In this experiment, the animals underwent surgeries to create dehiscence close to the oval window and distal to the oval window, with a size of 1.0 x 0.5 mm and 0.5 x 0.5 mm, within 1 mm or more than 3 mm from the superior semicircular canal crista.
The hearing loss is due to malposition of the stapes on the oval window. When present, genetic bone disorders frequently affect both the conductive and sensorineural hearing systems.
According to this study, cholesteatoma had extension beyond the aditus and antrum, 61% of attic, 37% of sinus tympani, and 16% of tensa.7 In tympanic cavity, oval window and sinus tympani were the most commonly involved parts (46.7% and 40.7%).
Sensorineural hearing loss or inner ear problems are a result of damage or defects to the oval window, cochlea, or the auditory nerve.
Otosclerosis usually affects the last bone in the chain, the stapes, which rests in the entrance to the inner ear (the oval window).
The stirrup is attached to something called the oval window on the cochlea.
The most common pathologies affecting the ear are, as described in the available literature, immobilization of the stapes, as well as a thickened and fragile footplate, accompanied occasionally by obliteration of the oval window niche.
In the presence of a mobile oval window (footplate) in patients without a stapes suprastructure, providing a columella between the graft/malleus and oval window is required.
The most common site of dehiscence was around the oval window (73%).
The incus then articulates with the stapes, and the footplate of the stapes is attached to the oval window. Vibrations of the tympanic membrane are transmitted along these ossicles to the oval window.
The first floor is approached via a return staircase which is complimented by a half landing with an ornate oval window.