by causing only degeneration of projections arising from ka-sensitive striatal neurons while sparing the connections of ka-resistant striatal neurons , the lesion-induced alterations of the basal ganglia show a characteristic pattern which bears a close resemblance with the neuropathological changes occurring in huntington 's disease : ( 1 ) severe degeneration of small and medium-sized striatal neurons , of pallidal neurons and the neurons of the pars reticulata of the sn , and ( 2 ) sparing of large striatal neurons , 'peripallidal ' ( nucleus basalis ) neurons and neurons of the pars compacta of the sn .
C0004781
basal ganglia
C0010097
striatal