Classification of cranial Nerves Sensory cranial nerves: are composed entirely of afferent (sensory) nerve fibers bringing sensations the brain I Olfactory nerve II Optic nerve Vu vestibulocochlear nerve Motor cranial nerves: are composed entirely of efferent (motor) fibers Il Oculomotor nerve TV Trochlear nerve Vi Abducent nerve XI Accessory nerve XI Hy poglossal nerve Mixed cranial nerves: possess both sensory and motor fibers-- V Trigeminal nerve Ⅶ Facial nerve IX Glossopharyngeal nerve X Vagus nerveClassification of Cranial Nerves • Sensory cranial nerves: are composed entirely of afferent (sensory) nerve fibers bringing sensations the brain Ⅰ Olfactory nerve Ⅱ Optic nerve Ⅷ Vestibulocochlear nerve • Motor cranial nerves: are composed entirely of efferent (motor) fibers Ⅲ Oculomotor nerve Ⅳ Trochlear nerve Ⅵ Abducent nerve Ⅺ Accessory nerve Ⅻ Hypoglossal nerve • Mixed cranial nerves: possess both sensory and motor fibers-- Ⅴ Trigeminal nerve, Ⅶ Facial nerve, Ⅸ Glossopharyngeal nerve Ⅹ Vagus nerve