part of part of Homo sapiens thoracic vertebra 11 zone of bone organ superior articular facet of eleventh thoracic vertebra 2026-03-19T00:00:00Z A zone of bone organ located on the superior articular process of the eleventh thoracic vertebra, oriented in the coronal plane and facing posteriorly. It articulates with the inferior articular facet of T10 at the zygapophyseal joint; T11 is a transitional vertebra where facet morphology begins the shift toward the lumbar sagittal pattern. David Osumi-Sutherland