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.
An occipital nerve block is an injection of numbing medicine next to the occipital nerves. There are occipital nerves on either side of the head, located just underneath the scalp on the back of the head. These are the greater and lesser occipital nerves. The greater occipital nerve provides sensation to the back and top part of the head.