The first, second and seventh cervical vertebrae have special names because their shapes are different from those of other cervical vertebrae. The first cervical vertebra is called the cervical vertebrae, which is shaped like a ring, so it is called the cervical vertebrae; the second cervical vertebra is called the pivot vertebrae, because the second cervical vertebra has an upward protrusion called the dentate process, which forms a cervical pivot joint with the cervical vertebrae. In addition to the cervical vertebrae, there is a soft tissue called intervertebral disc between the vertebrae and the vertebrae, and the composition of the human intervertebral disc is the same, which is composed of the annulus fibrosus, nucleus pulposus and end plate. The vertebral artery passes from the cervical 6 up through the transverse foramen to the cervical spine, and then enters the skull base through the vertebral artery groove to form the basilar artery. Cervical spondylosis is a syndrome in which the posterior part of the cervical spine is subjected to tension stress and the anterior edge is subjected to compression stress, resulting in cervical instability and osteophytes on the basis of cervical disc degeneration, leading to imbalance in the internal and external balance of the cervical spine, followed by a series of The syndrome of the cervical spine is a series of clinical symptoms.