How many vertebrae make up the thoracic spine?

The thoracic spine is made up of 12 vertebrae, which are designated as T1 to T12. This region of the spine is located between the cervical spine (which consists of 7 vertebrae) and the lumbar spine (which consists of 5 vertebrae). The thoracic vertebrae are unique because they are the only vertebrae that attach to the ribs, providing stability to the ribcage and protecting vital organs in the thorax, such as the heart and lungs. This structure is essential for maintaining posture, supporting the upper body, and facilitating movement. Understanding the anatomy of the spine, including the number of vertebrae in each section, is critical for personal trainers and healthcare professionals working with clients to ensure they provide safe and effective exercise programming.