What Is The Extraocular Muscle That Does Not Originate At The Annulus Of Zinn?
What Is The Extraocular Muscle That Does Not Originate At The Annulus Of Zinn? The inferior oblique (IO) muscle is the only EOM that does not arise from the orbital apex, but rather originates from the lateral border of the lacrimal fossa, which is anterior and nasal within the orbit. What muscles originate from the