Sulcus spiralis externus

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Sulcus spiralis externus
Floor of ductus cochlearis.
Latin Sulcus spiralis externus
Anatomical terminology

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