Chapter 2. Prehension

Appendix A - Human Upper Limb Anatomy 363
Table A.2 Joints and muscles in the upper limb (continued)
Fingers flex ext abd add
(excluding thumb)
m - v interossei 1
phalangeal lumbricals 1
flexor digiti minimi brevis (5)
flexor digitorum profundus (2,3,4,5)
2
flexor digitorum superficialis (2,3,4,5)
extensor digitorum (2,3,4,5)
extensor digiti minimi (5)
extensor indicis (2)
6
dorsal interossei (2,3,4) 1
abductor digiti minimi (5)
extensor digiti minimi (5)
3
palmar interossei (2,4,5) 1
proximal flexor digitorurn superficialis (2,3,4,5)
interphalangeal flexor digitorurn profundus
PIP)
in terossei
lumbricals (2,3,4,5)
extensor digitorum?
extensor indicis (2)?
extensor digiti minimi (5)?
distal flexor digitorum profundus (2,3,4,5)
interphalangeal extensor digitorum?
(DW
extensor indicis (2)?
extensor digiti minimi (5)?
lumbricals
NOTE: The lumbricals have their origin on the 4 flexor profundus tendons on the
palm; the interossei originate from the metacarpals. Both these intrinsic hand
muscles join with the Gxtensor tendons on the proximal phalanges. th us affecting
-1 ioints as well,
where:
flex flexion
ex t extension
abd abduction
add adduction
7
1
7