Final answer:
The traditional artic concerning the articulations in the cervical spine includes the atlantoaxial joint, which allows side-to-side head rotation, and the atlanto-occipital joint, permitting nodding movements.
Step-by-step explanation:
The hierarchy of traditional artic in the context of anatomy refers to the organization of joints and their articulations in the cervical region, particularly the atlantoaxial joint and the atlanto-occipital joint. The atlantoaxial joint consists of three articulations: the paired superior articular processes of the axis vertebra (C2) with the inferior articular processes of the atlas (C1), and the pivot joint between the dens of C2 and the anterior arch of C1. This allows for considerable rotation of the head side-to-side, like shaking your head 'no'. Meanwhile, the atlanto-occipital joint formed by the superior articular processes of the atlas and the occipital condyles allows for flexion and extension of the head, enabling up-and-down motion as in nodding 'yes'.