Unit 3 Eye Muscles

levator palpebrae superioris origin

greater wing of sphenoid in orbit

levator palpebrae superioris insertion

components of upper eyelid

levator palpebrae superioris innervation

oculomotor nerve

levator palpebrae superioris function

elevate upper eyelid

movements of eye

elevation (look up)
depression (look down)
adduction (goes midline)
abduction (goes out to outside)
internal rotation (roll eyes from top to midline)
external rotation (roll eyes from superior to outside)

superior rectus origin

superior portion of common tendinous ring

superior rectus insertion

sclera of eye

superior rectus innervation

oculumotor nerve

superior rectus function

elevation of eyeball
adduction of eyeball
medial rotation of eyeball

inferior rectus origin

inferior part of common tendinous ring

inferior rectus insertion

sclera of eye

inferior rectus innervation

oculomotor nerve

inferior rectus function

depression of eyeball
adduction of eyeball
lateral rotation of eyeball

medial rectus origin

medial part of common tendinous ring

medial rectus insertion

sclera of eye

medial rectus innervation

oculomotor nerve

medial rectus function

adduction of eyeball

lateral rectus origin

lateral part of common tendinous ring

lateral rectus insertion

sclera of eye

lateral rectus innervation

abducens nerve

lateral rectus function

abduction of eyeball