1. Given the symptoms described above, answer the following questions.
What muscle was affected?
     Infraspinatus m,
     Teres major m.
     Pectoralis minor m.
     Serratus anterior m.
     Deltoid m.
Which nerve innervates the affected muscle?
     Axillary n.
     Medial pectoral n.
     Lower subscapular n.
     Long thoracic n.
     Suprascapular n.