Figure 3.
Injection sites of all mice. (a) CTb injection sites are semi-transparent in red. Blue dots represent the distribution of NTS neurons containing immunoreactivity for 11-beta-hydroxysteroid dehydrogenase type 2 (HSD2), used to align the injection site drawing from each case. The CTb injection site from case #381, used for whole-brain illustration in the next figure, is highlighted with a blue-green outline. Double-retrograde injection cases are shown in (b), with CTb in red and fluorogold (Fg) injection sites in blue semi-transparency. Abbreviations: AP, area postrema; Gr, gracile nucleus; X, dorsal motor nucleus of the vagus nerve; XII, hypoglossal motor nucleus.