| 1
.
| Flexor digitorum superficialis (tendon cut off in synovial sheath) |
| 2
.
| Phalanx I |
| 3
.
| Common extensor digitorum muscle (insertion of tendon into base of second phalanx) |
| 4
.
| Flexor digitorum superficialis (insertion of tendon into shaft of second phalanx) |
| 5
.
| Phalanx II |
| 6
.
| Common extensor digitorum muscle (insertion of tendon into base of terminal phalanx) |
| 7
.
| Digital joint (distal interphalangeal joint) |
| 8
.
| Hidden margin of nail |
| 9
.
| Vallum of nail |
| 10
.
| Body of nail (stratum corneum) |
| 11
.
| Body of nail (stratum germinativum) |
| 12
.
| Free margin of nail |
| 13
.
| Matrix of nail |
| 14
.
| Phalanx I |
| 15
.
| Flexor digitorum profundus muscle (insertion of tendon into third phalanx) |
| 16
.
| Anterior accessory ligament |
| 17
.
| Flexor digitorum profundus muscle (tendon cut off in synovial sheath) |
| 18
.
| Anterior accessory ligament |
| 19
.
| Vinculum longum (cut off) |
| 20
.
| Corium (dermis) |
| 21
.
| Epidermis (stratum germinativum) |
| 22
.
| Epidermis (stratum corneum) |
| 23
.
| Tendon of digital sheath (internal surface) |
