Endolymphatic duct
The membranous labyrinth. (Ductus endolymphaticus labeled at bottom center.)
Endolymphatic duct is #6, and is labeled at top center.
Details
Identifiers
Latin	ductus endolymphaticus
MeSH	D004711
TA98	A15.3.03.079
TA2	7006
FMA	61246
Anatomical terminology [edit on Wikidata]

In anatomy, theendolymphatic sac is a structure in theinner ear. It is a canal that comes out of the posterior wall of thesaccule, then is joined by theutriculosaccular duct, and then passes along thevestibular aqueduct, before it ends up at theendolymphatic sac on the posterior surface of thepetrous portion of thetemporal bone, where it is in contact with thedura mater.

Disorders of the endolymphatic duct includeMeniere's Disease andenlarged vestibular aqueduct.

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  Transverse section through head of fetal sheep, in the region of the labyrinth. X 30.
• 
  Transverse section of a human semicircular canal and duct

This article incorporates text in thepublic domain frompage 1052 of the 20th edition ofGray's Anatomy(1918)

• The Endolymphatic Duct and Sac

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