Morphology of Stereocilia on Cochlear Hair Cells after Noise Exposure

  • B. Engstrom
  • E. Borg
  • B. Canlon
Part of the NATO ASI Series book series (NSSA, volume 111)


The stereocilia of the cochlear hair cells are a fragile link in the chain of structures and processes involved in the transduction of acoustic energy into electrical signals. The cilia are the focus of many studies on the normal structure and physiology of the ear. They are also extensively studied in ears with many types of hearing impairment and in the analysis of the effects of noise and toxic agents on the ear. In this paper, a review of different types and patterns of stereocilia damage will be presented with a description of different noise-induced structural alterations such as formation, of blebs, floppy, fused, fractured and giant cilia. Some aspects on species differences, exposure sound intensity and exposure duration are included as well as some functional correlates to cilia alterations.


Hearing Loss Hair Cell Actin Filament Noise Exposure Outer Hair Cell 
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Copyright information

© Plenum Press, New York 1986

Authors and Affiliations

  • B. Engstrom
    • 1
  • E. Borg
    • 2
  • B. Canlon
    • 2
  1. 1.Dept. of Oto-Rhino-LaryngologyUniversity HospitalUppsalaSweden
  2. 2.Dept. of Physiology IIKarolinska InstituteStockholmSweden

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