Medically reviewed by Nicholas R. Metrus, MDMedically reviewed by Nicholas R. Metrus, MD A nerve block for migraine headaches involves an injection of a local anesthetic into the base of the skull or ...

The frontal nerve is the largest branch of the ophthalmic division of the fifth cranial nerve. The ophthalmic nerve is responsible for conveying sensory information from the skin of the upper eyelids, ...

Your brainstem hosts multiple cranial nerves. The facial nerve is the seventh cranial nerve. It controls your facial movements and expressions. The nerve fibers controlled by your facial nerve also ...