Your spine is made up of 24 small bones (vertebrae) that are stacked on top of each other to create the spinal column. Between each vertebra is a soft, gel-like cushion called a disc, which helps to absorb pressure and keeps the bones from rubbing against each other. The spine itself has three main segments:the cervical spine at the top (seven bones,including the neck), the thoracic spine in the middle (12 bones), and the lumbar spine at the bottom (5 or 6 bones).
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