1
.
| Head of humerus |
2
.
| Joint capsule of humerus |
3
.
| Latissimus dorsi muscle |
4
.
| Radial nerve |
5
.
| Superior Ulnar collateral artery |
6
.
| Medial intermuscular septum |
7
.
| Medial epicondyle of humerus |
8
.
| Ulnar nerve |
9
.
| Pronator teres muscle (ulnar head) |
10
.
| Pronator teres muscle (humeral head) |
11
.
| Ulna |
12
.
| Biceps brachii muscle (long head) |
13
.
| Pectoralis major muscle |
14
.
| Musculocutaneous nerve |
15
.
| Lateral antebrachial cutaneous nerve |
16
.
| Branch musculocutaneous nerve (to brachialis muscle) |
17
.
| Brachialis muscle |
18
.
| Brachial artery |
19
.
| Inferior ulnar collateral artery |
20
.
| Median nerve |
21
.
| Biceps brachii muscle (tendon of insertion) |
22
.
| Radius |
23
.
| Interosseous membrane |