part of part of Homo sapiens rib 10 non-articular facet of tubercle of tenth rib 2026-03-19T00:00:00Z A skeletal element projection forming the rough, non-articular area on the tubercle of the tenth rib that provides attachment for the costotransverse ligament. The tenth rib is transitional in character, and its tubercle is less prominent than in upper ribs, with the non-articular facet directed more laterally. skeletal element projection David Osumi-Sutherland