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  2. Hair cell - Wikipedia

    en.wikipedia.org/wiki/Hair_cell

    Unlike birds and fish, humans and other mammals are generally incapable of regrowing the cells of the inner ear that convert sound into neural signals when those cells are damaged by age or disease. [ 6 ] [ 24 ] Researchers are making progress in gene therapy and stem-cell therapy that may allow the damaged cells to be regenerated.

  3. Inner ear - Wikipedia

    en.wikipedia.org/wiki/Inner_ear

    Various clusters of hair cells within the inner ear may instead be responsible; for example, bony fish contain a sensory cluster called the macula neglecta in the utricle that may have this function. Although fish have neither an outer nor a middle ear, sound may still be transmitted to the inner ear through the bones of the skull, or by the ...

  4. Inner ear regeneration - Wikipedia

    en.wikipedia.org/wiki/Inner_Ear_Regeneration

    The study of hair cell regeneration mechanisms in adult zebrafish may be transferable to inducing hair cell regeneration in mammals. The basic structure and function of the fish's inner ear is similar to that of other vertebrates. Mammals share homologous genes with zebrafish that are known to affect inner ear structure and function. [17]

  5. Organ of Corti - Wikipedia

    en.wikipedia.org/wiki/Organ_of_Corti

    The organ of Corti is located in the scala media of the cochlea of the inner ear between the vestibular duct and the tympanic duct and is composed of mechanosensory cells, known as hair cells. [2] Strategically positioned on the basilar membrane of the organ of Corti are three rows of outer hair cells (OHCs) and one row of inner hair cells ...

  6. Ear - Wikipedia

    en.wikipedia.org/wiki/Ear

    The inner ear houses the apparatus necessary to change the vibrations transmitted from the outside world via the middle ear into signals passed along the vestibulocochlear nerve to the brain. The hollow channels of the inner ear are filled with liquid, and contain a sensory epithelium that is studded with hair cells. The microscopic "hairs" of ...

  7. Auditory system - Wikipedia

    en.wikipedia.org/wiki/Auditory_system

    There are two types of hair cells specific to the auditory system; inner and outer hair cells. Inner hair cells are the mechanoreceptors for hearing: they transduce the vibration of sound into electrical activity in nerve fibers, which is transmitted to the brain. Outer hair cells are a motor structure.

  8. Stereocilia (inner ear) - Wikipedia

    en.wikipedia.org/wiki/Stereocilia_(inner_ear)

    In the inner ear, stereocilia are the mechanosensing organelles of hair cells, which respond to fluid motion in numerous types of animals for various functions, including hearing and balance. They are about 10–50 micrometers in length and share some similar features of microvilli . [ 1 ]

  9. Vestibular system - Wikipedia

    en.wikipedia.org/wiki/Vestibular_system

    Humans have two otolithic organs on each side, one called the utricle, the other called the saccule. The utricle contains a patch of hair cells and supporting cells called a macula. Similarly, the saccule contains a patch of hair cells and a macula. Each hair cell of a macula has forty to seventy stereocilia and one true cilium called a ...