The CN X is the vagus also it is called pneumogastric nerve,the Wanderer or sometimes the Rambler
Cranial nerve 4 (IV) is the trochlear nerve.
what does ninth cranial nerve control? glossopharyngeal nerve is a mixed nerve, it has sensory and motor part. the sensory is at the poserior 1/3 of the tongue. It also is part of the pharyngeal...
Because somebody would ask why it wasn't cranial nerves instead of brainial nerves.
The second cranial nerve is the optic nerve, which tells the brain what the eye is seeing