part of part of Homo sapiens thoracic vertebra 2 zone of bone organ transverse costal facet of second thoracic vertebra 2026-03-19T00:00:00Z A zone of bone organ located on the anterior surface of the transverse process of the second thoracic vertebra, presenting as a smooth oval articular area that articulates with the tubercle of the second rib at the costotransverse joint. This facet, together with the demifacets on the vertebral body, anchors the second rib to the thoracic column. David Osumi-Sutherland