vestibular lamella (of osseous spiral lamina)
vestibular lamella (of osseous spiral lamina)
[TA]the thicker of two plates of bone, incompletely separated from each other by canals for peripheral fibers from the spiral (cochlear) ganglion, that together comprise the osseous spiral lamina; this plate lies on the side of the scala vestibuli; a thickening of the periosteum, the spiral limbus, is attached to the vestibular lamella within the cochlear duct.
Synonym(s): lamella vestibularis (laminae spiralis ossei) [TA]