<prompt> After mastectomy, patient is NOT able to extend, adduct and internally rotate the arm. Nerve supply to which of the following muscles is damaged:-Pectoralis majorTeres minorLatissimus dorsiLong head of Triceps  <response>: Mastectomy may damage thoracodorsal nerve leading to paralysis of latissimus dorsi. The patient finds difficulty in - shoulder extension medial rotation adduction. 