<prompt> Injury to cervical nerve C5, C6 causes:Erbs paralysisKlumpke paralysisHorner syndromeCentral cord syndrome  <response>: Ans. a Erbs paralysisRef: Apleys orthopedics 9th ed. 279-80Erbs paralysis- Erbs palsy or Erb-Duchenne palsy is a paralysis of the arm caused by injury to the upper group of the arms main nerves, specifically the severing of the upper trunk C5-C6 nerves.Position of hand in Erbs paralysis: Adducted, Internally rotated, and pronatedKlumpkes paralysisKlumpkes Palsy involves the eighth cervical vertebra and the first thoracic vertebra C8 and Tl.Position of hand: Elbow flexed, arm supinatedThere may be unilateral homer syndromeHorner syndromeSeen with Pancoast tumor and presents with Ptosis, Miosis, enopthalmos, anhydrosis, loss of ciliospinal reflex.Central cord syndromeSeen most often after a hyperextension injury in an individual with long-standing cervical spondylosis. It presents with features of cortico-spinal pathway. 