in addition to the well known immunoreactive cck-8-like containing cell groups such as those in the ventral tegmental area , substantia grisea centralis of the mesencephalon , and n. linealis rostralis , the present study demonstrated a much wider distribution of immunoreactive cck-8-like cells in the lower brain stem , i.e . those in the inferior colliculus , n. parabrachialis colliculi posterioris , lateral lemniscus , lateral parabrachial area , n. centralis superior , nucleus of group o , pontine substantia grisea centralis , n. tractus solitarii , area postrema , n. tractus spinalis nervi trigemini and reticular formation just dorsal to the inferior olivary complex .
C0025462
mesencephalon
C0006121
brain stem