Artificial intelligence (AI) is the intelligence exhibited by machines or software. It is also the name of the academic field of study which studies how to create computers and computer software that are capable of intelligent behavior.
third occipital nerve. third occipital nerve n. The mediodorsal branch of the third cervical nerve, usually joined with the greater occipital nerve but also existing as an independent nerve having cutaneous branches to the scalp and the nape.
There are two branches to the occipital nerve -- the greater and lesser. Most of the time, the injury is to the greater ON. The ON takes origin from the C2 nerve root. Damage to the C2 nerve root, and possibly also the upper cord, can cause occipital neuralgia.