Three-dimensional representation of the extraocular muscles and semicircular canals of a cat (specimen Cat3). Surface rendering performed using Amira 4.1 (Mercury Inc., USA). (A) Lateral view. (B) Dorsal view. SO, superior oblique; IO, inferior oblique; SR, superior rectus; IR, inferior rectus; MR, medial rectus; LR, lateral rectus; ASC, anterior canal; PSC, posterior canal; LSC, lateral canal.