<prompt> First dorsal interosseous muscle of hand is supplied byDeep branch of ulnar nerveSuperficial branch of ulnar nerveMedian nerveRadial nerve  <response>: Deep branch of ulnar nerve supplies all the 4 dorsal interossei muscles.Superficial branch of ulnar nerve supplies the palmaris brevis muscle.Median nerve supplies the muscles of thenar eminence.Radial nerve have no supply to any intrinsic muscle of hand.B D Chaurasia 7th edition Page no: 182 