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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.


The three small bones of the middle ear: the malleus (hammer), the incus (anvil) and the stapes (stirrup). These bones help carry sound from the eardrum to the inner ear.
Mentioned in: Otitis Media, Stapedectomy
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
For each specimen, the volume of the middle ear ossicles was obtained by the volume of water displaced in a sealed microsyringe, and this value was subtracted from the volume of the corresponding cast to obtain RBV.
The middle ear ossicles represented on average 0.0025 % of the bullar volume.
In contrast to the malleus, the two other ear ossicles, the incus and stapes, appear more similar to chimpanzees, gorillas and orangutans.
Several unusual BAs have been reported, including retropharyngeal abscesses, (2,3,20) pharyngoceles, (4) duplicate middle ear ossicles, (5) and intrathyroidal masses and abscesses.
Alternately, as the middle ear ossicles are synovial joints, (23) it is possible that these joints can become painful, as do other synovial joints, and that ear manipulation affects these joints in a similar way that spinal manipulation affects zygapophyseal joints.
Ontogenetic and phylogenetic transformations of the ear ossicles in marsupial mammals.
The tiny ear ossicles start out as part of the jaw.
It arises from the eardrum (tympanic membrane) and grows into the middle ear, causing erosion of ear ossicles and the mastoid that contains the inner ear".
[Replacement of ear ossicles with titanium prostheses].
[Cold deformation elements for attaching an implantable hearing aid transducer to ear ossicles or perilymph].