| Endolymphatic duct | | | | The membranous labyrinth. (Ductus endolymphaticus labeled at bottom center.) | | | | Endolymphatic duct is #6, and is labeled at top center. | | Latin | ductus endolymphaticus | | Gray's | subject #232 1052 | | Dorlands/Elsevier | d_29/12314825 | 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. Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ...
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The petrous portion of the temporal bone or pyramid is pyramidal and is wedged in at the base of the skull between the sphenoid and occipital. ...
The temporal bones (os temporales) are situated at the sides and base of the skull. ...
The dura mater (from the Latin hard mother), or pachymeninx, is the tough and inflexible outermost of the three layers of the meninges surrounding the brain. ...
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 |
External links This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. eMedicine is an online clinical medical knowledge base that was founded in 1996. ...
The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ...
An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy after Henry Gray, is an anatomy textbook widely regarded as a classic work on human anatomy. ...
Utricle - Saccule (Endolymphatic sac, Endolymphatic duct) - Semicircular canals (Superior, Posterior, Horizontal) It has been suggested that Equilibrioception be merged into this article or section. ...
The utricle, larger than the saccule, is of an oblong form, compressed transversely, and occupies the upper and back part of the vestibule, lying in contact with the recessus ellipticus and the part below it. ...
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From the posterior wall of the saccule a canal, the ductus endolymphaticus, is given off; this duct is joined by the ductus utriculosaccularis, and then passes along the aquaeductus vestibuli and ends in a blind pouch, the endolymphatic sac, on the posterior surface of the petrous portion of the temporal...
inner ear illustration showing semicircular canal, hair cells, ampulla, cupula, vestibular nerve, & fluid The semicircular canals are three half-circular, interconnected tubes located inside each ear that are the equivalent of three gyroscopes located in three planes perpendicular (at right angles) to each other. ...
The introduction to this article provides insufficient context for those unfamiliar with the subject matter. ...
The posterior semicircular canal, vertical like the superior, is directed backward, nearly parallel to the posterior surface of the petrous bone; it is the longest of the three canals, measuring from 18 to 22 mm. ...
The lateral or horizontal canal (external semicircular canal) is the shortest of the three canals. ...
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