The column of bones called vertebrae make up your spine. These bones are named based on their loca...
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The column of bones called vertebrae make up your spine. These bones are named based on their location. The cervical vertebrae are in your neck. The thoracic vertebrae are in your upper back, and the lumbar vertebrae are in your lower back. The hollow space in the vertebrae called the spinal canal surrounds the spinal cord. Stenosis means the spinal canal has narrowed, reducing the area for the spinal cord. This narrowing increases pressure on nerves coming off of the spinal cord and can cause back pain, or numbness, weakness, or pain in the leg. Stenosis is most common in the lumbar region but may also occur in the cervical or thoracic region of the spinal column.

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