<prompt> All of the folowing are FALSE about Erbs paralysis EXCEPT?Supination of forearmInjury to lower trunk of Brachial PlexusInability to initiate abductionDecreased sensation on medial side of hand  <response>: Injury to the upper trunk of brachial plexus causes Erbs paralysis. Nerve roots involved C5 - C6 Muscles paralysed - Biceps brachii Brachialis Deltoid Brachioradialis Supraspinatus Infraspinatus paly Supinator Deformity: ka - policeman poer waiters tip hand Arm hangs by the side, adducted medially rotated Forearm extended pronated Disability: loss of the fall movements: Abduction lateral rotation of arm at shoulder Bicep with supinator jerk lost Sensory loss over small area of deltoid. 