round window


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Related to round window: oval window

window

 [win´do]
a circumscribed opening in a plane surface; called also fenestra.
aortic window a radiolucent region below the aortic arch, formed by the bifurcation of the trachea, visible in the left anterior oblique radiograph of the heart and great vessels.
window of cochlea (cochlear window) round window.
oval window an oval opening in the inner wall of the middle ear, which is closed by the stapes; called also vestibular window and fenestra vestibuli.
round window a round opening in the middle ear covered by the secondary tympanic membrane; called also cochlear window and fenestra cochleae.
vestibular window (window of vestibule) oval window.

round win·dow

[TA]
an opening on the medial wall of the middle ear leading into the cochlea, closed in life by the secondary tympanic membrane.

round window

Etymology: L, rotundus + ONorse, vindauga
a round opening in the medial wall of the middle ear leading into the cochlea and covered by a secondary tympanic membrane. Also called fenestra cochlea, fenestra rotunda.

fe·nes·tra co·chle·ae

(fĕ-nes'tră kōk'lē-ē) [TA]
An opening on the medial wall of the middle ear leading into the cochlea, closed in life by the secondary tympanic membrane.
Synonym(s): round window.

round window

The membranous, elastic opening in the outer wall of the inner ear that allows free movement of the fluid within the COCHLEA of the inner ear when sound vibrations are conveyed to it by the AUDITORY OSSICLES.

round window

see FENESTRA OVALIS AND ROTUNDA.

round win·dow

(rownd win'dō) [TA]
Opening on medial wall of middle ear leading into cochlea, closed in life by the secondary tympanic membrane.
Synonym(s): fenestra of the cochlea.

window

a circumscribed opening in a plane surface.

cochlear window, fenestra cochleae
an aperture between the tympanic cavity of the middle ear and the cochlea of the internal ear; covered by the secondary tympanic membrane. Called also round window.
oval window
an oval opening in the inner wall of the middle ear, which is closed by the stapes; called also fenestra vestibuli.
round window
see cochlear window (above).
References in periodicals archive ?
This study showed that ICWM with otoendoscopy was equal to CWDM with microscopy in providing visualization of the lateral epitympanum, posterior crus of the stapes, eustachian tube orifice, and round window niche.
Another advantage of the human anatomy is that false membranes and fibrous or fatty plugs are common in the round window niche, and these membranes and plugs can help protect the round window membrane from contact with fluids in the middle ear space.
Anatomical measurements of the cochlear aqueduct, round window membrane, round window niche, and facial recess.
The treatment options included (1) a middle fossa craniotomy with resurfacing or closure of the superior canal dehiscence, (2) a transmastoid superior canal occlusion, (3) a transcanal occlusion of the round window niche, and (4) continued observation.
In the latter, barometric trauma to the middle ear secondary to activities such as nose blowing or scuba diving can damage the inner ear via the round window membrane, resulting in harm to inner ear elements, including sensory cells.
A beautiful 19th-century brick building bears the motto 'Methodist School' - but above the writing, a round window portal whose sandstone bottom is decorated with a lush sandstone cornucopia carving, bears wire-reinforced glass, broken, with an air vent piercing it anyway.
At Ebina and Higashi Kishiwada, one of KMD's design elements is a supersized "oculus," a round window eight meters (about 26 feet) in diameter allowing moviegoers inside and outside the theater's two-story lobby to see and be seen.
In cases of acute unilateral deafness, no consensus exists as to whether tympanotomy and sealing of the round window should be performed routinely.
Scar bands were also seen between the malleus and the incudostapedialjoint, and they spanned the round window niche.
The kitchen has a white ash ceiling and a round window looking directly at Snowdon and, in the distance, the Italianate village of Port Meirion.
Lollis et al reported that 7 patients with persistent oval and/or round window fistulas, mainly obese middle-aged women, were greatly helped by decompressive shunting to reduce their high CSF pressures.