Optic canal in Sphenoid bone
Optic canal in Sphenoid bone
Cranial Nerve Ill:Oculomotor n. General somatic and visceral efferent fibers GSE extend from nucleus of oculomotor N.in midbrain,pass through the superior orbital fissure,and goes to the extra ocular muscles (levator palpebrae,superior rectus,inferior rectus,inferior oblique, medial rectus)except two(superior oblique and lateral rectus). GVE extend from accessory nucleus of oculomortor N.in midbrain,and goes to ciliary muscle and sphincter pupillae(parasympathic) via ciliary ganglia
• GSE extend from nucleus of oculomotor N. in midbrain, pass through the superior orbital fissure, and goes to the extra ocular muscles (levator palpebrae, superior rectus, inferior rectus, inferior oblique, medial rectus) except two (superior oblique and lateral rectus). • GVE extend from accessory nucleus of oculomortor N. in midbrain, and goes to ciliary muscle and sphincter pupillae (parasympathic) via ciliary ganglia. General somatic and visceral efferent fibers Cranial Nerve III: Oculomotor n
Superior orbital fissure in the sphenoid bone
Superior orbital fissure in the sphenoid bone
Superior Medial rectus orbital fissure Midbrain muscle Superior rectus muscle Levator palpebrae muscle Inferior oblique muscle Ciliary一 ganglion Inferior- rectus muscle Parasympathetic Oculomotor Pons motor fibers nerve (lll)
Ptosis(drooping of the eyelid) EXOTROPIA B Lateral strabismus (misaligned eye) Diplopia (double vision) Mydriasis(dilated pupil)