Endolymphatic duct

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
TA	A15.3.03.079
FMA	61246
*Anatomical terminology* [edit on Wikidata]

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 (endolymphatic sac) on the posterior surface of the petrous portion of the temporal bone, where it is in contact with the dura mater.

Additional images

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

Anatomy of hearing and balance

Tympanic cavity	Medial structures oval window round window secondary tympanic membrane prominence of facial canal promontory of tympanic cavity Posterior structures mastoid cells aditus to mastoid antrum pyramidal eminence

Ossicles	Malleus superior ligament lateral ligament anterior ligament Incus superior ligament posterior ligament Stapes annular ligament Muscles stapedius tensor tympani

Auditory tube / Eustachian tube	Torus tubarius

Auditory system/
Cochlear labyrinth

General cochlea	Vestibular duct Helicotrema Tympanic duct Modiolus Cochlear cupula

Perilymphatic space	Perilymph Cochlear aqueduct

Cochlear duct / scala media	Reissner's/vestibular membrane Basilar membrane Reticular membrane Endolymph Stria vascularis Spiral ligament Organ of Corti stereocilia tip links Tectorial membrane Sulcus spiralis externus internus Spiral limbus

Cells	Claudius cell Boettcher cell

Vestibular system/
Vestibular labyrinth

Vestibule	Utricle macula Saccule macula Kinocilium Otolith Vestibular aqueduct endolymphatic duct endolymphatic sac Ductus reuniens

Semicircular canals	Superior semicircular canal Posterior semicircular canal Horizontal semicircular canal Ampullary cupula Ampullae crista ampullaris

This article is issued from Wikipedia - version of the 6/9/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.