Sulcus spiralis internus
On the upper plate of that part of the lamina which is outside the vestibular membrane, the periosteum is thickened to form the spiral limbus, this ends externally in a concavity, the sulcus spiralis internus, which represents, on section, the form of the letter C.
|Sulcus spiralis internus|
Floor of ductus cochlearis.
|Latin||Sulcus spiralis internus|
This article incorporates text in the public domain from page 1055 of the 20th edition of Gray's Anatomy (1918)
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