cochlea

cochlea , pl. cochleae (kok´le-a, le-e) [NA]

A cone-shaped cavity in the petrous portion of the temporal bone, forming one of the divisions of the labyrinth or internal ear. It consists of a spiral canal making two and a half turns around a central core of spongy bone, the modiolus; this spiral canal of the cochlea contains the membranous cochlea, or cochlear duct, in which is the spiral organ (Corti). [L. snail shell]
membranous c. cochlear duct

 

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