inner hair cell


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Related to inner hair cell: cochlear hair cells

inner hair cell

sensory cells in the organ of Corti in synaptic contact with sensory as well as efferent fibers of the auditory nerve; there is a single row of flask-shaped inner hair cells tightly surrounded by supporting interphalangeal cells; the apical end of each cell is anchored to the cuticular plate and about 100 stereocilia arranged in a more or less linear (or shallow) "U" pattern extend from the cell's surface through the cuticular plate into the endolymphic space inferior to the tectorial membrane.
See also: cochlear hair cells, Corti cells.
References in periodicals archive ?
The cause is mostly damage to the inner hair cells specialized sensory cells in the inner ear that transmit information about sounds through the nervous system to the brain.
Most of the research until now has concentrated on the input end of the inner hair cells where the sound waves produce motion of the stereocilia," said Amy Lee, Ph.
Now we have found a new role for harmonin at the opposite end of these sound-sensing inner hair cells where it appears to control the signal output of the cell," added Lee.
The hypothesis that subjective tinnitus is primarily caused by glutamate excitotoxicity at the synapses between inner hair cells and their afferents in the cochlea has been confirmed.
In more severe cases, damage progresses to the inner hair cells and can even spread to the supporting cells in this order: Deiters' cells, pillar cells, and Claudius' cells.
The fibers that originate in the lateral area of the upper olivary complex extend through the ipsilateral cochlea and end under the nerve fibers on the inner hair cells.