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Spinal Nerves arise from the spinal cord. Spinal Nerves innervate all parts of the body, except for the head and some areas of the neck (they are innervated by Cranial Nerves - of which there are 12).
There are no bones in the spinal cord-the spinal cord is the nerve trunk that connect the brain to the rest of the body. However, there are typically 7 cervical, 12 thoracic â¦ , 5 lumbar, 5 sacral and 4 coccygeal vertebrae of the spinal column for a total of 33 vertebrae.he vertebral column is a collection of individual bones  called vertebrae that encase and protect th â¦ e spinal cord. The  vertebral column is divided into three parts: seven cervical (neck)  vertebrae at the top, twelve thoracic vertebrae in the midback, and  five lumbar vertebrae in the lower back.