1
.
| Left subclavian artery |
2
.
| Left vagus nerve |
3
.
| Left common carotid artery |
4
.
| Left phrenic nerve |
5
.
| Internal thoracic artery (note plexus of nerves from inferior cervical ganglion along proximal part of artery) |
6
.
| Mediastinal pleura |
7
.
| Anterior mediastinal lymph node (note other nodes and plexus of lymphatic vessels in this area) |
8
.
| Superior tracheobronchial lymph node (note lymphatic vessels entering node from lung and inferior part of mediastinum) |
9
.
| Pericardium |
10
.
| Anterior scalene muscle (cut off) |
11
.
| Cupula pleurae |
12
.
| Apex of lung |
13
.
| Rib II |
14
.
| Mediastinal surface upper lobe |
15
.
| Costal pleura |
16
.
| Costal surface upper lobe |
17
.
| Left superior pulmonary vein |
18
.
| Bronchopulmonary lymph node |