following iontophoretic peroxidase injections in several parts of the tectum anterograde transport of the enzyme revealed tectal projections to the lateral geniculate nucleus , dorsal tegmentum , pretectal nuclei , nucleus rotundus , torus longitudinalis , torus semicircularis , nucleus isthmi , contralateral tectum and to the mesencephalic and bulbar reticular formations .
C0039433
tectum
C0025462
mesencephalic