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I olfactory II optic III oculomotor IV trochlear V trigeminal VI abducens VII facial VIII vestibulocochelar IX glossopharyngeal X vagus XI accessory XII hypoglossal olfactory mucosa of nasal cavity optic retina oculomotor extrinsic eye muscles, ciliary muscle, muscles of iris trochlear superior oblique (extrinsic eye muscle) trigeminal sensory - face and head; motor - muscles of mastication abducens lateral rectus (extrinsic eye muscle) facial sensory - taste buds on anterior tongue; motor - muscles of face and scalp, salivary and tear glands vestibulocochelar cochlea, vestibule, and semicircular canals of inner ear glossopharyngeal sensory - taste buds on posterior tongue, receptors in pharynx and carotid sinus; motor - muscles of pharynx and parotid gland vagus sensory - taste buds on tongue and pharynx, thoracic and abdominal organs; motor - muscles of pharynx, larynx, thoracic and abdominal organs accessory muscles of larynx, pharynx, soft palate, shoulder, and neck hypoglossal tongue muscles