CHAPTER 10 Structure and Function of the Wrist and Hand Complex
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Adductor pollicis
Flexor pollicis brevis
Abductor pollicis brevis
Opponens pollicis
Transverse intercarpal ligament
A B Dorsal
interossei (1 to 4)
1 2 3 4
1
2 3
Palmar interossei (1 to 3)
C
D
Figure. 10.27 (A) Palmar view of adductor pollicis. (B) Dorsal interossei. (C) Palmar interossei. (D) Example of lumbrical action. Their tendon-to-extensor mechanism attachment allows the lumbricales to flex the MCP joints and extend the IP joints in digits 2 through 5.
