All of the following muscles undergo paralysis after injury to C5 and C6 spinal nerves except-


#1

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