3.48 oval window; vestibular window. Opening through the bone that separates the middle ear from the scala vestibuli of the cochlea. The oval window is closed by the footplate of the stapes. The footplate is fixed in the oval window by the annular...
3.47 outer tunnel of Corti. Fluid-filled space formed by the cells of Hensen and the outermost row of the outer hair cells, extending the length of the organ of Corti from base to...
3.45 osseous spiral lamina. Bony ledge that projects from and winds around the modiolus for about 2-3/8 turns from the base of the cochlea to the apex in humans. The basilar membrane is attached to the free border of the osseous spiral lamina and runs...
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