All are typical intercostal nerves except: (A) 2nd, (B) 3rd, (C) 4th, (D) 5th
Answer is A. Upper two intercostal nerves also supply the upper limb,third to sixth supply only the thoracic wall.so they are called typical intetcostal nerves. . B D CHAURASIA&;S HUMAN ANATOMY UPPER LIMB THORAX-VOLUME-1 SIXTH EDITION Page no:217