Posterior semicircular canal
- Posterior semicircular canal
Infobox Anatomy
Name = PAGENAME
Latin = canalis semicircularis posterior
GraySubject = 232
GrayPage = 1049
Caption = Interior of right osseous labyrinth.
Caption2 =
MapPos = Posterior semicircular canal
System =
Artery = stylomastoid artery
MeshName = Semicircular+Canals
MeshNumber = A09.246.631.663
DorlandsPre = c_04
DorlandsSuf = 12208874
The posterior semicircular canal is a part of the vestibular system and detects rotations of the head in the sagittal plane.
tructure
It is vertical, like the superior, is directed backward, nearly parallel to the posterior surface of the petrous bone. It is part of the bony labyrinth and is used by the vestibular system to detect rotations of the head in the sagittal plane.
It is the longest of the three canals, measuring from 18 to 22 mm.
Its lower or ampullated end opens into the lower and back part of the vestibule, its upper into the crus commune already mentioned.
ee also
* Semicircular canal
=Additional
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