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superior oblique muscle
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An anatomical illustration of the right eye shows the eyeball and surrounding bones with labeled muscles, including the superior, inferior, medial, and lateral rectus, superior and inferior oblique, levator palpebrae superioris, and the trochlea.
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superior oblique muscle

anatomy
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An anatomical illustration of the right eye shows the eyeball and surrounding bones with labeled muscles, including the superior, inferior, medial, and lateral rectus, superior and inferior oblique, levator palpebrae superioris, and the trochlea.
muscles of the right eye Muscles of the right eye.

The superior oblique muscle, also known as the trochlear muscle, is one of the six extraocular muscles that control eye movement. This muscle originates near the optic foramen and inserts via a tendon that passes through the trochlea, a pulley-like structure attached to the frontal bone.12

The superior oblique muscle primarily depresses the eye. However, due to its oblique pull, it also causes the eye to roll (torsion). It works in conjunction with the vertical rectus muscles, and while the superior rectus also elevates the gaze, both muscles cause some degree of inward rolling of the eye.1

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2 Britannica Sources
  1. human eye - Extraocular muscles
  2. trochlear muscle

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