Fig. 2.

GnIH cell and fiber distribution in rats and mice. GnIH fibers are distributed throughout the rostrocaudal extent of the brain, with fiber terminals concentrated in midline brain regions in rat (A–F) and mice (G and H). In mice, the cell bodies tend to spread more lateral in the DMH in comparison with hamsters (G and H). The rat distribution of cell bodies is similar to that of hamster (E and F). ac, anterior commisure; AH, anterior hypothalamus; BNST, bed nucleus of the stria terminalis; LS, lateral septum; LV, lateral ventricle; POA, preoptic area. (Scale bars: 400 μm at low power, 100 μm at high power.)