![]() ![]() For example, the C1-C2 disc in the neck lies between the first and second vertebrae in the cervical spine, and the T1-T2 disc lies between the first and second vertebrae in the thoracic spine. The L4 vertebra and L5 vertebra, along with the disc in between them, make up the L4-L5 segmentÄiscs are always labeled for the vertebrae that they lie between, and this is consistent throughout the length of the spine - for the cervical, thoracic and lumbar spine. The disc and vertebra above and below the disc comprise one segment of the spine - usually called a spinal level or spinal segment. ![]() The L5-S1 disc at the bottom of the spine lies between the L5 vertebra and the first bony segment at the top of the sacrum, which is sacral segment 1 (or S1).The L4-L5 disc in the low back is between the L4 vertebrae and L5 vertebrae which make up the L4-L5 spinal segment.Each disc is named according to which two vertebral bodies it lies between. Spinal discs are located in between each of the vertebral bodies along the back bone and may also be referred to as an intervertebral disc, spinal disc, or disk. Spinal Discs are in Between Each Vertebra ![]()
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