Mediastinum specimen in adult (left view) left vertebral anterior branch of 7th cervical n left internal jugular left subclavian a Ith rib costal pleura sternal angle aortic arch mediastinal pleura left pulmonary a left superior pulmonary v left superior lobar bronchus left inferior left inferior lobar bronchus pericardium thoracic aorta costomediastinal recess f2phrenicomediastinal recess 6th costal cartilage -lOth rib diaphragmatic pleura costodiaphragmaticMediastinum specimen in adult (left view)