Animated model of the human brain showing the locations of the roots of the twelve pairs of cranial nerves. The cranial nerves are nerves that emerge directly from the brain and brainstem. They are numbered I-XII in Roman numerals, and their numbers, names and positions are highlighted in order. The nerves carry sensory information from the nose, eyes, ears and mouth to the brain, and also carry motor information to the muscles controlling the eyes, mouth, face and tongue.