Each vertebra is numbered and grouped into 5 regions. Diagram. There are 7 cervical vertebrae in the cervical region. There are 12 thoracic vertebrae in the thoracic region. There are 5 lumbar ...
They also include the sternum and the thoracic vertebrae, where the ribs form. Unfortunately, while the ribs protect the heart and lungs, they can become damaged for various reasons.
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