<prompt> Erbs point is formed byC4 and C5C5 and C6C6 and C7C6 and T1  <response>: Erbs point is formed by the C5 and C6 root, anterior and posterior divisions of upper trunk, subscapular nerve and nerve to subclavius. Injury to upper trunk causes Erbs paralysis. B D Chaurasia 7th edition Page no: 59 