Superior semicircular canal

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Superior semicircular canal
Exterior of labyrinth.
Interior of right osseous labyrinth.
Latin canalis semicircularis superior
Gray's subject #232 1049
MeSH Semicircular+Canals

The superior semicircular canal, 15 to 20 mm. in length, is vertical in direction, and is placed transversely to the long axis of the petrous portion of the temporal bone, on the anterior surface of which its arch forms a round projection.

It describes about two-thirds of a circle.

Its lateral extremity is ampullated, and opens into the upper part of the vestibule; the opposite end joins with the upper part of the posterior canal to form the crus commune, which opens into the upper and medial part of the vestibule.

[edit] See also

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