part of part of Homo sapiens thoracic vertebral arch thoracic vertebra 8 vertebral arch of eighth thoracic vertebra 2026-03-19T00:00:00Z A neural arch forming the posterior bony ring of the eighth thoracic vertebra, consisting of pedicles and laminae that together with the body form the vertebral canal. The arch bears steeply inclined articular processes in the coronal plane, transverse processes with costal facets for rib 8, and a long spinous process directed sharply inferiorly. David Osumi-Sutherland