Scanning Electron Microscopic Observation of the Inner Hair Cells of Human

DOI
  • Ikegami Akihiro
    Department of Otolaryngology, School of Medicine, Kitazato University
  • Kawabata Isuzu
    Department of Otolaryngology, Faculty of Medicine, University of Tokyo

Bibliographic Information

Other Title
  • ヒト内有毛細胞の走査電顕像

Search this article

Abstract

The inner hair cells isolated from the surrounding supporting cells, were observed under scanning electron microscopy (SEM). The inner hair cells arranged in one row inside of the Corti tunnel. The cuticular plate of this cell was oval, providing the stepwise-arranged sensory hairs on its surface. The portion between cuticular plate and cell body was slightly invaginated inward the cytoplasm. This invagination existed throughout the whole cell body. We would like to term it “subcuticular sulcus” according to its morphology. The cell body of the inner hair cell is not rounded, but it looks like oval shape, having a long axis parallel to an arrangement of spiral organ. Although it was said that there were the inner pharangeal cells in the inter-cellular space between the inner hair cells, SEM observations showed that they jointed each other directly in the several portions of cell body. Furthermore, SEM observation reviewed the degenerated inner hair cell with atrophic or hypertrophic cell body, and with normal sensory hairs. Those SEM findings were discussed briefly.

Journal

  • AUDIOLOGY JAPAN

    AUDIOLOGY JAPAN 24 (2), 63-69, 1981

    Japan Audiological Society

Keywords

Details 詳細情報について

Report a problem

Back to top