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SUPERIOR ORBITAL FISSURE    (SE)   Superior orbital fissure is an elongated fissure that transmits vessels and nerves to and from the orbit. It is divided by common tendinous ring into three parts- lateral, middle and medial. Structures passing through superior orbital fissure Lateral part Lacrimal nerve   Frontal nerve   trochlear nerve Superior ophthalmic vein Middle part Upper and lower divisions of occulomotor nerve,   nasociliary nerve abducent nerve Medial part Inferior ophthalmic vein HYOID BONE     (SE) Hyoid bone is “U” shaped bone in the upper part of neck. It is suspended by muscles and ligaments. It has body, lesser cornu, and greater cornu. Body               It is the central thickend part.   Attachments            Geniohyoid and mylohyoid , omohyoid, thyrohyoid and genioglossus muscles. Lesser ...