The following rib cage diagram shows the important parts of the ribs. As shown in the rib cage labeled diagram, we have True Ribs (Vertebrosternal), Clavicular Articulation, Sternum, Manubrium, Body, Xiphoid Process, Costal Cartilage, Vertebrochondral Ribs 8-10, Floating Ribs 11-12, False Ribs 8-12, T11, and T12. The purpose of a labeled diagram is very simple -- provide the context of a diagram to the viewer. Since it becomes difficult for the readers to understand the diagram without context, labeling them would be an important key here. Diagrams range in complexity from very simple to deeply intricate, and so labeling diagrams is an activity that is appropriate at all grade levels and in many subject areas.