Root value of thoracodorsal nerve: (A) C5,C6,C7, (B) C6,T1, (C) C6,C7,C8, (D) T1,T2
Answer is A. Thoracodorsal nerve or long thoracic nerve arises from brachial plexus. Its nerve value is C5, C6 and C7. REF:BDChaurasia 7th edition Page no: 57.