Figure 7.

A. Immunoreactive fibers (arrowheads)containing NK in the pontine reticular formation (RetF). D: dorsal; M: medial. Scale bar: 100 μm B. A high density of immunoreactive fibers (arrowheads)in the gelatinosa (g) part of the spinal trigeminal nucleus (SpTNu) and a low density in the magnocellular part (m) of the same nucleus. D: dorsal; M: medial. Scale bar: 100 μm