Cranial Nerves;Cranial nerves are 12 nerves that originate at the brain and primarily supply the head and neck.The terminal nerves, olfactory nerves (I) and optic nerves (II) originate from the cerebrum or forebrainThe remaining ten pairs start from the brainstem.CN I – OlfactoryCN II – OpticCN III – OculomotorCN IV – TrochlearCN V – TrigeminalCN VI – AbducensCN VII – FacialCN VIII – VestibulocochlearCN IX – GlossopharyngealCN X – VagusCN XI – AccessoryCN XII – Hypoglossal