Muscles of the eye

A: Abduct eyeball

A: Abducts, depresses and medially rotates eyeball

A: Abducts, elevates and laterally rotates eyeball

A: Adducts eyeball

A: Depresses, adducts and rotates eyeball medially

A: Elevates superior eyelid

A: Elevates, adducts and rotates eyeball medially

I: Passes through the trochlea and inserts on the sclera deep to superior rectus

I: Sclera deep to lateral rectus muscles

I: Sclera just posterior to cornea

I: Tarsal plate and skin of superior eyelid

N: Abducent nerve (CN VI)

N: Oculomotor (CN III)

N: Trochlear nerve (CN IV)

O: Anterior part of the floor of orbit

O: Body of sphenoid bone

O: Common tendinous ring

O: Lesser wing of sphenoid bone