in the brainstem , several groups of 5htir neurons could be discerned , that for reasons of topological similarity were named according to lidov and molliver a raphe pallidus/obscurus-complex ( b1 and b2 ) , raphe magnus ( part of b3 ) , median raphe ( b8 ) possibly including raphe pontis ( b5 ) , raphe dorsalis ( b4 , b6 and b7 ) , and b9 .
C0006121
brainstem
C0034671
raphe