Definition of T1-T12 (thoracic vertebrae)

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T1-T12 (thoracic vertebrae): The symbols T1 through T12 represent the 12 thoracic vertebrae. The thoracic vertebrae are situated between the cervical (neck) vertebrae and the lumbar vertebrae.

The thoracic vertebrae provide attachment for the ribs and make up part of the back of the thorax (the chest).