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There are seven extraocular muscles. There are a total of four rectus muscles, two oblique muscles, and the standalone levator palpebrae superioris. The four rectus muscles are the medial rectus, lateral rectus, superior rectus, and inferior rectus. The oblique muscles are the superior and inferior obliques.

Levator palpabrae superioris acts to elevate the superior eyelid.

Superior oblique acts to abduct, depress and rotate the eyeball medially.

Inferior oblique acts to abduct, elevate and rotate the eyeball laterally.

Superior rectus acts elevate, adduct and rotate the eyeball medially.

Inferior rectus acts depress, adduct and rotate the eyeball laterally.

Medial rectus acts to adduct the eyeball.

Lateral rectus acts to abdoct the eyeball.