All of the following muscles undergo paralysis after injury to C5 and C6 spinal nerves except-
1.Biceps
2.Coracobrachialis
3.Brachialis
4.Brachioradialis
Exp:
Movements affected in Erb’s palsy
-
Shoulder
o Abduction
o Lateral rotation
-
Forearm
o Flexion
o Supination
-
Biceps & Supinator jerks lost -
Sensation over lower part of deltoid lost
Muscles affected in Erb’s palsy
-
Paralysis of-
o Biceps
o Deltoid
o Brachialis
o Brachioradialis
-
Partially affected
o Supraspinatus
o Infraspinatus
o Supinator