List of Muscles of The Human Body/version 2 - Muscles of Head and Neck: The Head - Extraocular Muscles

Extraocular Muscles

Muscle Origin Insertion Artery Nerve Action Antagonist
levator palpebrae superioris sphenoid bone tarsal plate, upper eyelid ophthalmic artery oculomotor nerve retracts//elevates eyelid orbicularis oculi muscle
superior tarsal underside of levator palpebrae superioris superior tarsal plate of the eyelid ophthalmic artery sympathetic nervous system raise the upper eyelid

Rectus:

Muscle Origin Insertion Artery Nerve Action Antagonist
superior annulus of Zinn at the orbital apex 7.5 mm superior to the corneal limbus oculomotor nerve elevates, adducts, and rotates medially the eye
inferior annulus of Zinn at the orbital apex 6.5 mm inferior to the corneal limbus inferior branch of oculomotor nerve depression and adduction
medial annulus of Zinn at the orbital apex 5.5 mm medial to the corneal limbus inferior division of the oculomotor nerve adducts the eyeball
lateral annulus of Zinn at the orbital apex 7 mm temporal to the corneal limbus abducens nerve abducts the eyeball

Oblique:

Muscle Origin Insertion Artery Nerve Action Antagonist
superior annulus of Zinn at the orbital apex, medial to optic canal Outer posterior quadrant of the eyeball lateral muscular branch of the ophthalmic artery trochlear nerve primary: intorsion. secondary:abduct (laterally rotate) and depress the eyeball
inferior orbital surface of the maxilla, lateral to the lacrimal groove laterally onto the eyeball, deep to the lateral rectus, by a short flat tendon oculomotor nerve extorsion, elevation, abduction

Read more about this topic:  List Of Muscles Of The Human Body/version 2, Muscles of Head and Neck: The Head

Other articles related to "extraocular muscles, muscles":

Extraocular Muscles - Additional Images
... the eye Dissection showing origins of right ocular muscles, and nerves entering by the superior orbital fissure View of the orbit from the front, with nerves and extraocular muscles Extraocular ...

Famous quotes containing the word muscles:

    Biological possibility and desire are not the same as biological need. Women have childbearing equipment. For them to choose not to use the equipment is no more blocking what is instinctive than it is for a man who, muscles or no, chooses not to be a weightlifter.
    Betty Rollin (b. 1936)