spiral lamina

(redirected from Osseous spiral lamina)
Also found in: Medical, Wikipedia.

spiral lamina

A spiral bony projection extending from the modiolus into the spiral canal of the cochlea, forming the division between the scala vestibuli and scala tympani in the inner ear.

References in periodicals archive ?

This site of activation is assumed to be the cell bodies of spiral ganglion neurons or, in some cases, surviving peripheral nerve fibers within the osseous spiral lamina.

This damage ranges from relatively minor displacement of the basilar membrane to severe fracture of the osseous spiral lamina, tearing of the basilar membrane or spiral ligament, and deviation of the electrode path from its intended location in the ST to the overlying scala media and/or scala vestibuli.

Considerations for design of future cochlear implant electrode arrays: electrode array stiffness, size, and depth of insertion

6,8] More specifically, type II collagen is a significant component of the osseous spiral lamina, the spiral limbus, and the tectorial membrane.