Semicircular canals

Semicircular canals
The internal ear, with "semicircular ducts" at left
Illustration showing a semicircular canal. The osseous structure contains its semicircular duct which is continuous to the membranous ampulla that contains hair cells, a cupula, vestibular nerve endings and endolymph fluid.
Details
ArteryStylomastoid artery, labyrinthine artery
Identifiers
Latincanalis semicircularis
ductus semicircularis
MeSHD012665
TA98A15.3.03.015
TA26954
FMA60186
Anatomical terminology

The semicircular canals are three semicircular interconnected tubes located in the innermost part of each ear, the inner ear. The three canals are the lateral, anterior and posterior semicircular canals. They are the part of the bony labyrinth, a periosteum-lined cavity on the petrous part of the temporal bone filled with perilymph

Each semicircular canal contains its respective semicircular duct, i.e. the lateral, anterior and posterior semicircular ducts, which provide the sensation of angular acceleration and are part of the membranous labyrinth—therefore filled with endolymph.


Developed by StudentB