1
.
| Proper palmar digital nerves of median nerve |
2
.
| Adductor pollicis muscle (transverse head) |
3
.
| Branch of median nerve to metacarpophalangeal joint and tendon sheath of thumb |
4
.
| Lumbrical muscle I |
5
.
| Proximal phalanx thumb (covered by periosteum) |
6
.
| Ligament of digital sheath |
7
.
| Abductor pollicis brevis muscle (elevated) |
8
.
| Flexor pollicis brevis muscle (superficial head, elevated) |
9
.
| Muscular branch of ulnar nerve (to flexor pollicis brevis muscle) |
10
.
| Flexor pollicis longus muscle (tendon of insertion) |
11
.
| Opponens pollicis muscle (reflected laterally) |
12
.
| Flexor pollicis brevis muscle (deep head) |
13
.
| First carpometacarpal joint capsule |
14
.
| Transverse carpal ligament |
15
.
| Muscular branch of median nerve (recurrent branch, displaced medially) |
16
.
| Median artery (large) |
17
.
| Common palmar digital nerves of median nerve |
18
.
| Adductor pollicis muscle (oblique head) |
19
.
| Anterior common digital artery (to thumb and index finger) |