Cranial Nerves • 12 pair • Name and number • Emanate from the brain stem • Sensory, motor, or mixed

Filaments of olfactory nerve (I) Olfactory bulb Olfactory tract Optic nerve (II) Optic chiasmptic t Ractnerve (III) Trochlear nerve (IV) Trigeminal nerve (V) Abducens nerve (VI) Cerebellum Medulla oblongata Frontallobe Temporallobe Infundibulum Facial nerve (VII) Vestibulo- cochlear nerve (VIII) Glossopharyngeal nerve (IX) Vagus nerve (X) Accessory nerve (XI) Hypoglossal nerve (XII) Oculomotor

VIII Vestibulocochlear No Sensory function Yes (taste) Yes Motor Cranial nerves I – VI Sensory function Motor function PS* fibers I II III IV V Olfactory Optic Oculomotor Trochlear Trigeminal Yes (smell) Yes (vision) No Yes (general No Yes No Yes sensation) VI Abducens Cranial nerves VII – XII VII Facial VIII Vestibulocochlear No Sensory function Yes (taste) Yes (hearing Yes Motor function Some No PS* fibers Yes andbalance) IX X XI XII Glossopharyngeal Vagus Accessory Hypoglossal Yes (taste) No Yes Yes No

CN I – Olfactory Nerves • Sensory • Location • Foramina • Cribriform plate • Olfactory bulb/tract

CN II – Optic Nerves • Sensory • Location • Foramina • Optic tract • Optic chiasma • Contralateral

CN III – Oculomotor Nerves • Motor • Location • Muscles

CN IV – Trochlear Nerves • Motor • Location • Muscle

CN V – Trigeminal Nerves • Mixed • Location • Muscles • Sensation

CN VI – Abducens Nerves • Motor • Location • Muscles

CN VII – Facial Nerves • Mixed • Location • Muscles • Sensation

CN VIII – Vestibulocochlear Nerves • Sensory • Location

CN IX – Glossopharyngeal Nerves • Mixed • Location

CN X – Vagus Nerves • Mixed • Location

CN XI – Accessory Nerves • Motor • Location • Muscles

CN XII – Hypoglossal Nerves • Motor • Location • Muscles