Semicircular canals

The semicircular canals are components of the bony labyrinth along with the cochlea and vestibule

Gross anatomy

There are three semicircular canals on each side:

The semicircular canals are interconnected tubes, each forms two-thirds of a circle and located in three planes perpendicular (at right angles) to each other.

The arcuate eminence, which is located at the anterior surface of the petrous temporal bone (PTB), indicates the location of the superior semicircular canal.

Related pathology

Head and neck anatomy
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Article information

rID: 42094
System: Head & Neck
Section: Anatomy
Tag: refs, cases
Synonyms or Alternate Spellings:

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Cases and figures

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    Case 1: axial bone window - lateral semicircular canal
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    Case 1: coronal bone window - superior and posterior semicircular canals
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