Fig. 3.

A,C: Labeled cells in the caudal NST (arrows) located in the caudal central (CC) subdivision. B: Nissl-stained section of the caudal NST comparable to that in A. Cytoarchitectonic features (Ganchrow et al., 2007) include dense cellularity of CC medial to the solitary tract (T), sparse cellularity of the medial (M) subdivision, and large cells of the ventrolateral (VL) subdivision (from the Allen Brain Atlas, Brain-Maps.org, Mus musculus, Nissl, coronal, data set 43, C57-C2a, section m18e). D: Fluorescent “Nissl green” counterstain of the same section as in C showing the location of T and the boundaries of CC, M, and area postrema (AP). E,F: Labeled cells (arrows) in the pontine para-brachial nucleus comlex are located medial (E) or ventrolateral (F) to the brachium conjunctivum (BC, dashed outline). The medial (M) and lateral (L) divisions of the PBN are indicated. Cells in the locus ceruleus (LC) are autofluorescent. For letters not defined see list of Abbreviations. Scale bars = 100 µm in B (applies to A–D); 100 µm in E,F.