The cranial nerves are a set of 12 paired nerves that arise directly from the brain. The first two nerves (olfactory and optic) arise from the cerebrum, whereas the remaining ten emerge from the brain stem.
The names of the cranial nerves relate to their function and they are also numerically identified in roman numerals (I-XII).
In this article, we shall summarise the anatomy of the cranial nerves.
