the effect of dopamine ( da ) and apomorphine ( apo ) on acetylcholine ( ach ) release from guinea-pig brain was investigated ( i ) in superfused slices of cerebral cortex , caudate nucleus , tuberculum olfactorium , brain stem and ( ii ) in unrestrained , unanaesthetized animals , provided with epidural parietal cups .
C0006104
brain
C0007461
caudate nucleus