Endolymphatic duct

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Endolymphatic duct
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The membranous labyrinth. (Ductus endolymphaticus labeled at bottom center.)
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Endolymphatic duct is #6, and is labeled at top center.
Latin ductus endolymphaticus
Gray's p.1052

From the posterior wall of the saccule a canal, the endolymphatic duct, is given off; this duct is joined by the ductus utriculosaccularis, and then passes along the aquaeductus vestibuli and ends in a blind pouch (saccus endolymphaticus) on the posterior surface of the petrous portion of the temporal bone, where it is in contact with the dura mater.

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This article incorporates text from a public domain edition of Gray's Anatomy.