| A | B |
| manubrium articulates with the cartilage of the first and second rib and the body of the sternum at the | manubriosternal joint, or sternal angle |
| at the level of the sternal angle of Louis | 2nd rib articulates with the sternum & aortic arch begins and ends |
| angle of Louis is at the level of the IV disc between | T4 and T5 vertebrae |
| three parts of sternum | manubrium, body of sternum, xiphoid process |
| body of sternum (mesosternum) articulates with the | second to seventh costal cartilages |
| mesosternum articulates with the xiphoid process at the | xiphosternal joint |
| Xiphosternal joint is at the level of the | T9 vertebrae |
| xiphoid process is attached via the caudal end to the | linea alba |
| dermatome over the xiphoid process is | T6 |