auditory ossicles

(redirected from ear bones)

au·di·to·ry os·si·cles

[TA]
the small bones of the middle ear; they are articulated to form a chain for the transmission of sound from the tympanic membrane to the oval window.
Synonym(s): ossicula auditus [TA], ear bones, ossicular chain
Farlex Partner Medical Dictionary © Farlex 2012

auditory ossicles

The 3 diminutive bones of the middle ear. The malleus is attached to the inner face of the tympanic membrane at the manubrium and articulates at its head with the body of the incus; the incus in turn articulates at its lenticular process with the head of the stapes; the stapes is attached at its base by a ligamentous ring to the oval window of the vestibule. Sound waves channelled though the external acoustic canal (auditory duct) to the tympanic membrane are amplified by the auditory ossicles.

The vibrations received at the oval window are passed down the cochlea; the relative movement of the basilar and tectorial membranes leads to deflection of the stereocilia of the hair cells in the organ of Corti, which generates an influx of K+ ions and production of electrical signals that travel via the cochlear nerve to the auditory complex.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

au·di·to·ry os·si·cles

(aw'di-tōr-ē os'i-kĕlz) [TA]
The small bones of the middle ear; they are articulated to form a chain for the transmission of sound from the tympanic membrane to the oval window.
Synonym(s): ossicula auditus [TA] , ear bones.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

auditory ossicles

The chain of three tiny bone in the middle ear which acts as an impedance transformer, efficiently coupling the relatively large low-impedance movement of the ear drum to the smaller, high-impedance movement of the fluid in the cochlea of the inner ear.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

au·di·to·ry os·si·cles

(aw'di-tōr-ē os'i-kĕlz) [TA]
Small bones of middle ear articulated to form a chain for the transmission of sound from the tympanic membrane to the oval window.
Synonym(s): ear bones.
Medical Dictionary for the Dental Professions © Farlex 2012
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