| 1
.
| Abductor pollicis brevis muscle |
| 2
.
| Flexor pollicis brevis muscle (superficial head) |
| 3
.
| Flexor pollicis brevis muscle (deep head) |
| 4
.
| Opponens pollicis muscle |
| 5
.
| Metacarpotrapezial joint capsule |
| 6
.
| Abductor pollicis longus muscle (tendon of insertion) |
| 7
.
| Extensor pollicis brevis muscle (tendon of insertion) |
| 8
.
| Superficial anterior branch radial artery |
| 9
.
| Palmar cutaneous branch of median nerve |
| 10
.
| Flexor carpi radialis muscle (tendon of insertion) |
| 11
.
| Radial artery |
| 12
.
| Median artery (large) |
| 13
.
| Flexor digitorum superficialis muscle |
| 14
.
| Fascia within carpal tunnel (including sheath of common tendon of flexor muscles) |
| 15
.
| Flexor carpi ulnaris muscle (tendon of insertion) |
| 16
.
| Ulnar artery |
| 17
.
| Transverse carpal ligament (divided) |
| 18
.
| Median nerve |
| 19
.
| Muscular branch of median nerve (recurrent branch) |
| 20
.
| Opponens digiti minimi muscle |
