Lateral Perspective of the Sectioned C7 Vertebra

Description

Shown in lateral profile, the sectioned C7 vertebra (vertebra prominens) sits at the cervicothoracic junction, inferior to C6 and superior to T1, with the intervertebral discs separating the vertebral bodies along the anterior column. The vertebral body lies anteriorly, while the pedicles and laminae form the vertebral arch posteriorly, converging on a long, non-bifid spinous process that projects posterior and slightly inferior. Superior and inferior articular processes align to form the C6 to C7 and C7 to T1 zygapophysial joints, and the transverse process region is positioned lateral to the vertebral body where the foramen transversarium is expected in cervical vertebrae. Posterior elements dominate this silhouette. C7 matters because it is the most reliable palpable landmark in the posterior midline of the neck, used to count cervical and upper thoracic levels during physical exam and procedure planning. A lateral perspective clarifies why the spinous process is “solitary” compared with typically bifid C2 to C6, and it helps distinguish C7 from T1, where the first rib and more steeply angled thoracic spinous processes start to influence surface contour. This level is also central in cervical trauma assessment and in operative planning for posterior approaches at the cervicothoracic junction, where changes in facet orientation and spinal canal geometry affect decompression and instrumentation decisions. Use this illustration in gross anatomy and musculoskeletal courses to teach cervical vertebrae identification, intervertebral disc spacing, and regional transitions from cervicalis to thoracic spine. It also fits radiology teaching files and surgical manuals that pair lateral anatomy with lateral cervical radiographs or CT sagittal reconstructions for level counting, C7 spinous process fractures (clay-shoveler injury), and cervicothoracic fusion planning. Anatomical accuracy verified by SciePro's Medical Advisory Board.