The thoracic vertebrae are a set of twelve bones located in the middle section of the spine, between the cervical and lumbar vertebrae. They are labeled T1 to T12 and provide support for the rib cage, protecting vital organs such as the heart and lungs. Each thoracic vertebra connects to a pair of ribs, allowing for flexibility and movement in the upper body. These vertebrae have a unique structure, featuring a larger body compared to the cervical vertebrae and a longer spinous process. This design helps maintain stability and balance while allowing for a range of motion, such as twisting and bending. The thoracic region plays a crucial role in overall spinal health and posture.