How many thoracic vertebrae are there?

The human spine consists of a total of 12 thoracic vertebrae, which are located in the upper and mid-back region. They are identified by the letter "T" followed by a number (T1 through T12).

The thoracic vertebrae serve several important functions: they provide attachment points for the ribs, which protect vital organs such as the heart and lungs, and they contribute to the structure and support of the thoracic cavity. Additionally, the configuration of these vertebrae allows for the necessary stability and flexibility of the spine while enabling upper body movements.

In contrast, the cervical spine, which is made up of seven vertebrae, comprises the neck region, and the lumbar spine houses five vertebrae in the lower back. The sacral and coccygeal regions have fused vertebrae that are not counted in this particular category. Thus, the count of 12 thoracic vertebrae is integral to understanding the overall anatomy of the spinal column and its role in protecting the thoracic cavity and supporting the skeletal framework.