Illustration of the human brain (bottom view) with the so-called cranial nerves, their names and their functions. Nerves that directly originate from the brain, most of them from the brain stem, are called cranial nerves. They are called: Olfactory nerve, Optical nerve, Oculomotor nerve, Trochlear nerve, Abducens nerve, Vestibulocochlear nerve, Glossopharyngeal nerve, Hypoglossus nerve, Vagal nerve, Cranial accesory nerve, Facial nerve, and Trigeminal nerve.
