part of part of Homo sapiens rib 2 non-articular facet of tubercle of second rib 2026-03-19T00:00:00Z A skeletal element projection forming the rough, non-articular portion of the tubercle of the second rib that provides attachment for the lateral costotransverse ligament. It is adjacent to the articular facet and faces posteriorly toward the transverse process of the second thoracic vertebra. skeletal element projection David Osumi-Sutherland