The Blair Upper Cervical (Blair UC) Technique is a specific system of analyzing and adjusting the upper cervical vertebrae of the spinal column. These vertebrae can misalign in such a way as to interfere with the brainstem and spinal cord as they exit through the skull into the neural canal. Special attention is given to the first two cervical vertebrae, the atlas and axis, as they are the most freely moveable vertebrae in the spinal column and the ones most commonly misaligned.