grafts of embryonic tissue taken from the substantia nigra ( rich in dopamine neurons could provide a complete recovery of methamphetamine-induced rotation and a partial recovery of apomorphine-induced rotation , whereas no recovery was seen in rats with grafts of tissue rich in another monoamine ( serotonin , dissected from the mesencephalic raphe ) or of tissue appropriate to the target ( dissected from the striatal eminence ) .
C0038590
substantia nigra
C0025462
mesencephalic