part of part of Homo sapiens rib 8 non-articular facet of tubercle of eighth rib 2026-03-19T00:00:00Z A skeletal element projection forming the rough, lateral portion of the tubercle of the eighth rib that provides attachment for the lateral costotransverse ligament. It is distinct from the smooth medial articular facet and is directed posteriorly and inferiorly, becoming increasingly lateral in position as rib number increases. skeletal element projection David Osumi-Sutherland