The uppercervical spine consists of the base of the skull (Occiput) the Atlas and the Axis vertebrae. In the absence of malformation the properly aligned Atlas will sit level relative to the horizon; the head and cervical spine are vertical and perpendicular to the atlas vertebrae. The spinous processes of the cervical vertebrae should be lined up in the center of the vertebrae with no twist or rotation. When the neck and head are in perfect alignment the brainstem and spinal cord can sit in the center of the spinal canal free of interference from torque produced by pulling on ligamentous attachments called the dentate ligaments. The Atlas is the most freely movable vertebrae in the spine with half of normal head rotation coming from the C1/2 articulation. Chronic malposition and subluxation of the Atlas vertebrae can cause insufficiency in blood flow of the vertebral artery and the jugular vein, congestion of cerebral spinal fluid may also occur along with torsion to the cerebellum and brainstem. These effects may result in different types of headaches, neurological symptoms, balance disorders, dizziness and unsteadiness, face pain, jaw pain, neck and shoulder pain, lower spine and pelvis misalignment and many other symptoms. Proper uppercervical analysis and correction is crucial for full healing to occur and for the central nervous system to communicate free of interference.