Fourth Thoracic Vertebra, Anterior View

Description

Centered in an anterior view, the fourth thoracic vertebra (T4) presents the vertebral body with its superior and inferior endplates clearly defined, including the anterior vertebral margin and the subtle concavity of the body’s anterior surface. Laterally, the short pedicles lead toward the vertebral arch, and the transverse processes project posterolaterally beyond the body’s margins, with costal facets positioned to receive the head and tubercle of the corresponding ribs. Superior and inferior costal demifacets on the body sit near the pedicle attachments, marking the typical thoracic pattern for rib articulation. Orientation is straightforward. T4 sits near the level of the sternal angle (Angle of Louis), a surface landmark used to identify the second rib and, by counting, locate upper thoracic interspaces for chest tube planning and auscultation mapping. An anterior depiction of the vertebral body also supports teaching of vertebral compression fracture morphology, where wedge deformity and endplate disruption are assessed relative to the anterior cortex, and it clarifies why thoracic vertebrae differ from cervical elements that lack rib facets. That distinction matters in radiographic level identification on AP spine films and CT scout views. Ideal for gross anatomy and vertebral osteology teaching, this asset also fits orthopedic and radiology publications discussing thoracic level localization, vertebral body fractures, or costovertebral joint relationships. It can anchor patient education materials on thoracic spine mechanics and rib attachment points without distracting posterior elements. Anatomical accuracy verified by SciePro's Medical Advisory Board.