Cranial Nerve

A peripheral nerve arising from the brain. There are 12 paired cranial nerves, numbered in Roman numeral style, they are: Olfactory nerve (Cranial Nerve I), Optic nerve (Cranial Nerve II), Oculomotor nerve (Cranial Nerve III), Trochlear nerve (Cranial Nerve IV), Trigeminal nerve (Cranial Nerve V), Abducent nerve (Cranial Nerve VI), Facial nerve (Cranial Nerve VII), Vestibulocochlear nerve (Cranial Nerve VIII), Glossopharyngeal nerve (Cranial Nerve IX), Vagus nerve (Cranial Nerve X), Accessory nerve (Cranial Nerve XI), and Hypoglossal nerve (Cranial Nerve XII)