Depth of Imprint on the Tectorial Membrane. Studies Using by 3 Dimensional Measurement System.:-Studies Using by 3 Dimensional Measurement System-

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This study estimated the depth of imprint on the tectorial membrane using a new three dimensional measurement system. The tectorial membrane covers the surface of the organ of Corti. The tips of the sensory cell hairs are firmly embedded in the undersurface of the tectorial membrane. Scanning electron microscopic findings show the existence of small holes (hair imprint) made by tips of sensory hairs.Since the sensory cells of the organ of Corti are believed to be stimulated by bending the sensory hair, it is interesting to determine the depth of imprint. The three dimensional measuring system used in the present studies, was recently developed and can measure the surface structure of a material. The principles of the system are described.According to this system, the depth of imprint varies but average values are from 0.02 to 0.03 um. The bird's-eye view of the imprints obtained by this system are also shown. The findings are briefly discussed.
耳鼻咽喉科臨床学会の論文