summarizing the results obtained from small injections restricted to subregions of the cord we feel that it is possible to distinguish three fairly distinct pathways for spinal projections from the medullary raphe and adjacent regions : the dorsal pathway originates mainly from cells in the caudal pons and rostral medulla oblongata ( rostral part of nucleus raphe magnus , nucleus raphe magnus proper , nucleus reticularis gigantocellularis pars alpha and nucleus paragigantocellularis ) .
C0007634
cells
C0007610
nucleus