Superior Oblique Muscle

For the abdominal muscle see: Abdominal external oblique muscle


The superior oblique muscle, or obliquus oculi superior, is a fusiform muscle originating in the upper, medial side of the orbit (i.e. from beside the nose) which abducts, depresses and internally rotates the eye. It is the only extraocular muscle innervated by the trochlear nerve (the fourth cranial nerve).

Read more about Superior Oblique Muscle:  Action, Origin and Insertion, Clinical Significance, Additional Images

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