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The tectorial membrane normally extends into the cochlear duct to cover the stereocilia on the apical ends of the hair cells. In a small region the tectorial membrane is attached to the hairs of sensory cells. The fibrillar appearance of the lateral edge of the tectorial membrance is visible here. This network is probably more extensive in fixed preparations than in living tissue because the tectorial membrane is extremely prone to shrinkage. The marginal net appears in some cases to terminate on the surface of supporting phalangeal or Deiter's cells or at the boundary between phalangeal cells and Hensen's cells.  SEM X1265  3.5" X 4.5"  **On Page Credit Required**