muscles & nerve roots
Shoulder flexion
anterior deltoid
supraspinatus
coracobrachialis
(C5-C7)
shoulder external rotation
infraspinatus
teres minor
(C5-C6)
scapular depression and adduction
lower traps
XI:accessory nerve
Supination
Pronation
S: supinator & biceps brachii (C5-C7)
P: pronator teres & pronator quadratus (C6-C8)
finger abduction
dorsal interossei (C8-T1)
shoulder extension
posterior deltoid
(C5-C8)
shoulder internal rotation
subscapularis
(C5-T1)
scapular adduction and downward roatation
rhomboids
(C5)
wrist flexion
wrist extension
WF: FCU & FCR (C6-T1)
WE: ECU, ECRL, ECRB (C6-C8)
thumb MP and IP flexion
thumb MP and IP extension
flex: flexor pollicis brevis & longus (C8-T1)
ext: extensor pollicis brevis & longus (C7-C8)
shoulder abduction
middle deltoid
supraspinatus
(C5-C6)
scapular abduction and upward rotation
serratus anterior
(C5-C7)
scapular depression
latissimus dorsi
teres major
posterior deltoid
finger MP flexion
lumbricals
interossei
(C8-T1)
thumb abduction
thumb adduction
ABD: abductor pollicis longus & brevis (C7-T1)
ADD: adductor pollicis longus & brevis (C8-T1)
shoulder HORIZONTAL abudtion
posterior deltoid
(C5-C6)
scapular elevation
upper traps
levator
(C3-C5)
elbow flexion
biceps brachii *aggregate*
-brachialis
-brachioradialis
(C5-C6)
finger PIP & DIP flexion
flexor digitorum superficialis & profundus
(C8-T1)
opposition
opponens pollicis & digiti minimi
(C8-T1_
shoulder HORIZONTAL adduction
pectoralis major
(C5-T1)
scapular adduction
middle traps
(C3-C4)
elbow extension
triceps
(C6-C8)
extensor digitorum, indicis, digiti minimi
(C7-C8)