Definitions for oval window
This page provides all possible meanings and translations of the word oval window
Random House Webster's College Dictionary
an oval opening in the wall between the middle and inner ear against which the base of the stapes vibrates during sound transmission.
Origin of oval window:
fenestra ovalis, fenestra vestibuli, oval window, fenestra of the vestibule(noun)
fenestra that has the base of the stapes attached to it
The oval window is a membrane-covered opening which leads from the middle ear to the vestibule of the inner ear. Vibrations that come into contact with the tympanic membrane travel through the three ossicles and into the inner ear. The oval window is the intersection of the middle ear with the inner ear, and is directly contacted by the stapes; by the time vibrations reach the oval window, they have been amplified over twenty times from what they were when they contacted the tympanic membrane, a testament to the amplifying power of the middle ear. It is a reniform 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.
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