<prompt> False regarding Klumpkes paralysis is:Claw hand deformityIntrinsic muscles of hand involvedHomers syndromeUpper trunk of brachial plexus involved  <response>: Ans: D Upper trunk of brachial plexus involved Ref: Grays Anatomy, 39th edition, 2008.Page.848Explanation:Klumpkes paralysis:Site of injury: Lower trunk of brachial plexus mainly T1 partly C8Cause of injury: Forcible breech delivery-. Pancoast tumour, thoracic surgery involving sternal split cervical rib thoracic outlet syndromeMuscles paralysed: Intrinsic muscles of hand T1 Ulnar side llexors of wrist and lingers C8 Deformity:Motor fibres involved :Claw hand hyper extension at MCP joint flexion at IP jointSensory fibres involved:Anaesthesia analgesia along the ulnar border of forearm and handTrophic changes long standing cases- dry scaly skin, nail cracks and atrophy of pulp of fingersSympathetic fibres involved:Horners syndrome sympathetic fibres from TlConsists of Ptosis, Miosis, Enophthalmos, Anhydrosis Loss of Ciliospinal reflex.Vasomotor changes - skin warm dry arteriolar dilatationNote: Erbs paralysis: Upper trunk of brachial plexus involved, i.e. Erhs point C5 C6 