| 1
.
| Flexor digitorum superficialis (tendon to index finger) |
| 2
.
| Flexor digitorum profundus muscle (tendon to index finger) |
| 3
.
| Flexor pollicis longus muscle (tendon of insertion) |
| 4
.
| Area of insertion of abductor pollicis brevis muscle and flexor pollicis brevis muscle (superficial head) |
| 5
.
| Lumbrical muscle I (branches of median nerve visible as they enter muscle) |
| 6
.
| Adductor pollicis muscle |
| 7
.
| Flexor pollicis brevis muscle (deep head) |
| 8
.
| Muscle slip originating with flexor pollicis brevis muscle and inserting with opponens pollicis muscle |
| 9
.
| Opponens pollicis muscle (area of insertion) |
| 10
.
| Carpometacarpal joint capsule |
| 11
.
| Opponens pollicis muscle (remnant of proximal part of muscle) |
| 12
.
| Transverse carpal ligament |
| 13
.
| Flexor carpi radialis muscle (tendon of insertion) |
| 14
.
| Tendon sheath of flexor pollicis longus muscle (posterior wall exposed by removing tendon) |
| 15
.
| Radial artery |
| 16
.
| Cut edge of mesotendon of flexor digitorum muscles |
| 17
.
| Fascia covering pronator quadratus muscle |
| 18
.
| Sheath of common tendon of flexor muscles (posterior wall exposed by reflecting tendons) |
| 19
.
| Ulnar artery and nerve |
| 20
.
| Flexor carpi ulnaris muscle (insertion into pisiform bone) |
| 21
.
| Right pointer: Muscular branch ulnar artery (in usual position of deep anterior branch ulnar artery) Left pointer: Deep branch of ulnar nerve |
| 22
.
| Upper pointer: Fascia of adductor pollicis muscle Lower pointer: Deep anterior branch ulnar artery (aberrant position, see 21 above) |
| 23
.
| Opponens digiti minimi muscle |
| 24
.
| Anterior interosseus fascia |
| 25
.
| Muscular branch of ulnar nerve (to lumbrical muscle III) |
| 26
.
| Flexor digiti minimi muscle |
| 27
.
| Sheath of common tendon of flexor muscles (distal limit on deep aspect of reflected tendons) |
| 28
.
| Abductor digiti minimi muscle |
| 29
.
| Flexor digitorum profundus muscle (deep surfaces of tendons reflected distally) |
