Cervical spine. Coloured computed tomography (CT) scan of the side of the cervical (neck) part of the spine. The spine is made of a column of 33 cylindrical bones called vertebrae (blue and orange blocks). Between the vertebrae are discs of cartilage that both stabilise the spine and allow movement. The vertebrae provide attachment sites for the muscles and ligaments that hold the spine together. The vertebrae also enclose and protect the spinal cord (not seen), which connects the brain to the rest of the body. CT scans use X- rays to obtain slice images of body tissues.

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