Inner tunnel

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Inner tunnel
Limbus laminæ spiralis and membrana basilaris. ("6" is Zona arcuata.)
Anatomical terminology

The basilar membrane stretches from the tympanic lip of the osseous spiral lamina to the basilar crest and consists of two parts, an inner and an outer. The inner is thin, and is named the inner tunnel (or zona arcuata): it supports the spiral organ of Corti.


This article incorporates text in the public domain from page 1056 of the 20th edition of Gray's Anatomy (1918)

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