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The spine is a long column of bones that runs down the center of a person's back. It helps with stability, ... There are 12 vertebrae in the thoracic spine, known as T1–T12.
12 bones comprise the upper back, which doctors call the thoracic spine. The first bone of the upper back begins at the base of the neck, and the 12th bone ends just below the ribcage. Upper back ...
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