<prompt> All of the following arise from the apex of orbit exceptSuperior obliqueInferior rectusSuperior rectusMedical rectus  <response>: Superior oblique rises from under the surface of the lesser wing of sphenoid, superomedial to the optic canal. The four recti arise from a common annular tendon or tendinous ring of Zinn. The ring is attached to the middle pa of the superior orbital fissure.Ref: BD Chaurasia; Volume 3; 6th edition; Page no: 208 