Winging of scapula is seen due to paralysis of-
Ans. is 'a' i.e., Serratus anterior * Winging of scapula is caused most commonly by serratus anterior palsy.* This is typically caused by damage to long thoracic nerve (nerve to serratus anterior).
Serratus anterior
Latissimus dorsi
pectoralis major
Levator scapulae
Upper Extremity