outcropping muscles of the deep layer Flashcards
1
Q
pa: abductor pollicis longus
A
posterior surface:
ulna
radius
interosseous membrane
(URI)
2
Q
da: abductor pollicis longus
A
base of 1st metacarpal
3
Q
which nerve innervates all the outcropping muscles of the deep layer?
A
radial nerve (PIN) C7 C8
4
Q
pa: extensor pollicis brevis
A
posterior radius and interosseous membrane
5
Q
pa: extensor pollicis longus
A
posterior ulna and interosseous membrane
6
Q
da: extensor pollicis brevis
A
base of proximal phalanx of thumb
7
Q
da: extensor pollicis longus
A
base of distal phalanx of thumb
8
Q
ma: APL
A
thumb radial abduction @ CMC joint
thumb extension @CMC joint
9
Q
ma: EPB and EPL
A
thumb extension @CMC and MCP joints
10
Q
unique ma: EPL
A
thumb extension @IP joint
