See Also: spiral plate(medicine)
secondary spiral plate(medicine)
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spiral(1)(dictionary)
spiral(4)(dictionary)

spiral plate (medicine)


spiral plate -->
osseous spiral lamina


A double plate of bone winding spirally around the modiolus dividing the spiral canal of the cochlea incompletely into two, scala tympani and scala vestibuli; between the two plates of this lamina the fibres of the cochlear nerve reach the spiral organ (of Corti).

Synonym: lamina spiralis ossea, spiral plate.