Body of Mandible Superior Pharyngeal Constrictor Ramus of Mandible Masseter Muscle Nasal Septum Medial Pterygoid Muscle Inferior Concha Lateral Pterygoid Muscle Foramen Magnum Internal Jugular Vein Maxillary Sinus Internal Carotid Artery Nasal Pharynx External Carotid Artery Mastoid Air Cells (Click on images for larger view) Return to Head & Neck Radiology Resources