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In the human there are 31 pairs of spinal nerves, one on each side of the vertebral column. These are grouped into the corresponding cervical, thoracic, lumbar, sacral and coccygeal regions of the spine.
Overview. In order to categorize the spinal nerves, anatomists divide the vertebral column into four distinct areas, referred to as the cervical, thoracic, lumbar and sacral regions of the spine. Thirty-one pairs of nerves emerge from the spinal cord. Nerves that exit through openings between the vertebrae are called spinal nerves, while nerves that emerge through openings in the skull are known as cranial nerves.