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  • Title: Crosslinks between stereocilia in hair cells of the human and guinea pig vestibular labyrinth.
    Author: Jeffries DJ, Pickles JO, Osborne MP, Rhys-Evans PH, Comis SD.
    Journal: J Laryngol Otol; 1986 Dec; 100(12):1367-74. PubMed ID: 3492581.
    Abstract:
    The saccules and ampullae of the semicircular canals from human and guinea pig temporal bones were fixed in glutaraldehyde without osmium. Crosslinks were seen between stereocilia of the vestibular hair cells, similar to those previously demonstrated in the guinea pig, although an additional set of crosslinks was displayed: first, horizontal crosslinks were seen between adjacent stereocilia, occupying most of the length of the hair bundle; secondly, a single upward-pointing link ran from the apex of each shorter stereocilium into the shaft of the adjacent taller stereocilium; thirdly, an extensive array of horizontal links were demonstrated between stereocilia close to their insertion into the cuticular plate. We suggest that these basal crosslinks support the long vestibular stereocilia rendering them more rigid, and that the upwind pointing crosslinks are responsible for the initiation of sensory transduction.
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