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Sesamoid bones associated with the distal thoracic limb.
There is one DORSAL SESAMOID BONE (#30) at the level of the metacarpophalangeal joint of digits 2-5, on the DORSAL surface.
There are two PROXIMAL SESAMOID BONES (#29) at the level of the metacarpophalangeal joint of digits 2-5.
There is one PROXIMAL SESAMOID BONE (#29) at the level of the metacarpophalangeal joint of digit 1. Proximal sesamoid bones are on the PALMAR surface of the joint.
There is a SESAMOID IN ABDUCTOR DIGITI 1 LONGUS (#31) muscle in the medial carpus.
Image series key:
1. RADIUS
2. ULNA
3. INTERMEDIORADIAL CARPAL BONE
4. ACCESSORY CARPAL BONE
5. ULNAR CARPAL BONE
6. FIRST CARPAL BONE
7. SECOND CARPAL BONE
8. THIRD CARPAL BONE
9. FOURTH CARPAL BONE
10. METACARPAL 1
11. METACARPAL 2**
12. METACARPAL 3**
13. METACARPAL 4**
14. METACARPAL 5**
15. PROXIMAL PHALANX OF DIGIT 1**
16. DISTAL PHALANX OF DIGIT 1**
17. PROXIMAL PHALANX OF DIGIT 2**
18. PROXIMAL PHALANX OF DIGIT 3**
19. PROXIMAL PHALANX OF DIGIT 4**
20. PROXIMAL PHALANX OF DIGIT 5**
21. MIDDLE PHALANX OF DIGIT 2**
22. MIDDLE PHALANX OF DIGIT 3**
23. MIDDLE PHALANX OF DIGIT 4**
24. MIDDLE PHALANX OF DIGIT 5**
25. DISTAL PHALANX OF DIGIT 2**
26. DISTAL PHALANX OF DIGIT 3**
27. DISTAL PHALANX OF DIGIT 4**
28. DISTAL PHALANX OF DIGIT 5**
29. PROXIMAL SESAMOID BONE
30. DORSAL SESAMOID BONE
31. SESAMOID IN ABDUCTOR DIGITI 1 LONGUS
**INDICATES PALPABLE STRUCTURE