Flashcards in Extensor Muscles Of Forearm(deep layer) Deck (20)
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Supinator p.a.
LEH
1
Supinator d.a.
Lateral, posterior, and anterior surfaces of proximal third of radius
2
Supinator innervation
Deep branch of radial nerve
C7c8
3
Supinator action
Supinates forearm
4
Abductor pollicis longus p.a.
Posterior surface of proximal halves of ulna, radius, and interosseous membrane
5
Abductor pollicis longus d.a.
Base of first metacarpal
6
Abductor pollicis longus innervation
Posterior interosseous nerve
C7c8
Cont. of deep branch of radial nerve
7
Abductor pollicis longus action
Abducts thumb and extends it at carpometacarpal joint
8
Extensor pollicis longus p.a.
Posterior surface of middle third of ulna and interosseous membrane
9
Extensor pollicis longus d.a.
Dorsal aspect of base of distal phalanx of thumb
10
Extensor pollicis longus innervation
Posterior interosseous nerve
C7c8
Cont. of deep branch of radial nerve
11
Extensor pollicis longus action
Extends distal phalanx of thumb at interphalangeal joint
12
Extensor pollicis brevis p.a.
Posterior surface of distal third of radius and interosseous membrane
13
Extensor pollicis brevis d.a.
Dorsal aspect of base of proximal phalanx of thumb
14
Extensor pollicis brevis innervation
Posterior interosseous nerve
C7c8
Cont. of deep branch of radial nerve
15
Extensor pollicis brevis action
Extends proximal phalanx of thumb at metacarpophalangeal joint
16
Extensor indicis p.a.
Posterior surface of distal third of ulna and interosseous membrane
17
Extensor indicis d.a.
Extensor expansion of 2nd finger
18
Extensor indicis innervation
Posterior interosseous nerve
C7c8
Cont. of deep branch of radial nerve
19
