Your “backbone” is not a bone at all. It’s actually acolumn of 24 individual bones called vertebrae. Thesebones are separated by intervertebral discs, which act asshock absorbers. Each disc has a soft core surroundedby a capsule of fibrous tissue.Nerve roots run out from the spinal cord, passingbetween the vertebrae. These spinal nerves send themessages responsible for muscle movement, and theycarry back the signals of sensation.A group of strong ligaments holds the vertebraetogether. Muscles run along the sides of the spinalcolumn to provide extra support.
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