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Curvature of the vertebral column resulting from the column turning on its axis.

The upper two vertebrae in the cervical spine, the atlas and the axis, differ from the other vertebrae because they are designed specifically for rotation. These two vertebrae are the reason your neck can move in so many directions.

Mid Spine = Thoracic

Lumbar Spine = Below the Thoracic vertebraes - your lumbar spine consists of 5 discs/vertebrae.

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