trigeminal
- n the main sensory nerve of the face and motor nerve for the muscles of mastication
- Many researchers believe that migraines are caused by irritation of an area of the head called the trigeminal nerve branches.
- So much is happening all at once during a migraine that it has been hard to pinpoint what sets off the trigeminal nerve.
- During the course of a migraine, scientists discovered, the trigeminal nerve practically floods the brain with pain signals.