Second Thoracic Vertebra T2, Lateral View

Description

Seen in lateral profile, the second thoracic vertebra (T2) sits in the upper thoracic spine between T1 superiorly and T3 inferiorly, with an intervertebral disc at each interface. The vertebral body lies anterior to the vertebral arch, while the laminae and spinous process project posteriorly along the thoracic kyphosis. Short, thick pedicles form the posterolateral walls of the vertebral canal and connect the body to the posterior elements, and the superior articular processes rise at the junction of pedicle and lamina to meet the inferior articular processes of T1. Costal facets on the body and transverse process align laterally with the head and tubercle of the second rib. A lateral view of T2 is a workhorse for teaching thoracic zygapophyseal (facet) orientation, where the articular surfaces trend more in the coronal plane than in the cervical spine, limiting flexion and extension while permitting rotation. It also supports clinical localization at the cervicothoracic junction, where trauma can produce wedge compression of the vertebral body or fracture patterns that involve the pedicle and may narrow the spinal canal. Pedicle anatomy matters in posterior fixation, since thoracic pedicle screw placement demands an accurate sense of pedicle width and angulation to avoid medial breach. Use this asset in gross anatomy and radiologic anatomy curricula to pair with lateral radiographs or sagittal CT reformats for level identification, rib articulation, and facet joint alignment, and in spine surgery teaching files discussing upper thoracic instrumentation and fracture classification. Anatomical accuracy verified by SciePro's Medical Advisory Board.