The mid and upper back extends from slightly below the seventh cervical vertebra all the way down to the bottom in the 12th thoracic vertebra, which strains up roughly with the tenth rib (the 3rd from the bottom). [ C or U ] a slight alter to figures according to https://andresnrctk.blog-gold.com/54716196/the-single-best-strategy-to-use-for-spinal-decompression