Sulcus spiralis externus

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Sulcus spiralis externus
Floor of ductus cochlearis.
Gray's subject #232 1055
Dorlands/Elsevier s_28/12769904

The basilar crest gives attachment to the outer edge of the basilar membrane; immediately above the crest is a concavity, the sulcus spiralis externus.

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.