| 1
.
| Levator muscle of scapula (cut across) |
| 2
.
| Rhomboid minor muscle (cut across) |
| 3
.
| Descending branch superficial transverse artery |
| 4
.
| Rhomboid major muscle (cut across) |
| 5
.
| Serratus anterior muscle (middle part, cut across) |
| 6
.
| Subscapularis muscle |
| 7
.
| Serratus anterior muscle (lower part, cut across) |
| 8
.
| Teres major muscle |
| 9
.
| Latissimus dorsi muscle (cut across) |
| 10
.
| Serratus anterior muscle (upper part, cut across) |
| 11
.
| Superior margin of scapula |
| 12
.
| Omohyoid muscle (cut across) |
| 13
.
| Suprascapular nerve (cut across) |
| 14
.
| Transverse scapular artery (cut across) |
| 15
.
| Superior transverse ligament of scapula |
| 16
.
| Clavicle |
| 17
.
| Coracoid process of scapula |
| 18
.
| Branches of subscapular nerve |
| 19
.
| Musculocutaneus nerve |
| 20
.
| Branches of subscapular nerve |
| 21
.
| Thoracodorsal nerve |
| 22
.
| Quadrangular space |
| 23
.
| Posterior circumflex artery of humerus |
| 24
.
| Subscapular artery (cut off) |
| 25
.
| Circumflex artery of scapula (entering triangular space) |
| 26
.
| Thoracodorsal artery |
| 27
.
| Median nerve |
