cervical levels muscles actions

Question 1

C5

Answer 1

shoulder abd - C 5,6
elbow flex c 5,6

Question 2

c6

Answer 2

shoulder abd (deltoid, supraspinatus) c 5,6
shoulder add (lat dorsi) c 6,7,8
elbow flex (biceps) c 5,6
wrist ext (ecr l & b) c 6,7

Question 3

c7

Answer 3

shoulder add (lat dorsi) c 6,7,8
elbow ext (triceps) c 7,8
wrist ext (ecr l & b) c 6,7
wrist flex (fcu, fcr) c 7,8

Question 4

c8

Answer 4

shoulder add (lat dorsi) c 6,7,8
elbow ext (triceps) c 7,8
wrist flex (fcu, fcr) c 7,8
grip strength (flexors & lumbricals) C8, T1
finger abd (dorsal interossei) C8,t1
thumb opp (opp pollicus) C8, T1