Line drawings through the parabrachial nucleus illustrating the distribution pattern of Fos activation after two hours of hypertension. (A) Series of rostral to caudal drawings showing the distribution of Fos-activated neurons (red dots), FoxP2 neurons (green dots), and co-labeled Fos & FoxP2+ neurons (yellow stars). (B) These brainstem drawings to illustrate the distribution of Fos-activated neurons (red dots), Lmx1b+ neurons (blue dots), and co-labeled Fos & Lmx1b+ neurons (magenta stars). In Panel B, the bregma −9.0 and −9.25 levels had a large number of c-Fos activated Lmx1b+ neurons in the PBel-outer subgroup.