The thoracic vertebrae are a set of twelve bones located in the middle section of the spine, between the cervical vertebrae in the neck and the lumbar vertebrae in the lower back. 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 has a unique structure that allows for limited movement, which helps maintain stability in the upper body. These vertebrae articulate with the ribs, forming the thoracic spine that plays a crucial role in posture and movement. The thoracic vertebrae also serve as attachment points for muscles and ligaments, contributing to the overall function of the back. Their design helps absorb shock and distribute weight, making them essential for daily activities.