in addition to their already known distribution , gastrin-cholecystokinins containing neural cell bodies and fibers were present in olfactory structures , in various preoptic and hypothalamic nuclei ( except in mamillary bodies ) , in mesencephalic nucleus linearis rostralis , and in a-10 , a-9 , and a-8 regions of dahlstrom and fuxe , which include substantia nigra .
C0025462
mesencephalic
C0038590
substantia nigra