1
.
| Cricoid cartilage |
2
.
| Trachea |
3
.
| Isthmus of thyroid gland (cut across) |
4
.
| Inferior thyroid vein right |
5
.
| Sternothyroid muscle |
6
.
| Sternal extremity of clavicle (covered by joint capsule) |
7
.
| Thymus |
8
.
| Articular surface of manubrium of sternum for left clavicle |
9
.
| Manubrium of sternum |
10
.
| Common carotid artery |
11
.
| Vagus nerve (X) |
12
.
| Ascending cervical artery |
13
.
| Phrenic nerve |
14
.
| Superficial cervical artery |
15
.
| Inferior cervical ganglion |
16
.
| Vertebral vein |
17
.
| Thyrocervical trunk |
18
.
| Thoracic duct |
19
.
| Subclavian artery |
20
.
| Anterior scalene muscle |
21
.
| Transverse scapular artery |
22
.
| Cupula pleurae |
23
.
| Internal thoracic (mammary) artery (note internal mammary nerve plexus) |
24
.
| Anterior and posterior bronchomediastinal lymphatic trunks |
25
.
| Left internal mammary lymphatic vessels |
26
.
| Upper pointer: Anonymous vein left (retracted anteromedially) Lower pointer: Costoclavicular ligament |