Figure 6.
Six coronal Nissl-stained sections from case MBfx5 taken at different anterior (A) to posterior (F) levels through the tegmental area. The injection is presumed to have involved much of the medial and lateral mammillary nuclei. The HRP-positive cells are stained brown and form dense aggregates, especially in the ventral tegmental nucleus of Gudden. A–F: Four tegmental areas containing HRP-positive cells: ATg, VTgI, VTgP, and DTg. G,H: HRP-positive cells in the ventral tegmental nucleus. Note that the label “VTgI” in Figure 6C, D, and G is placed adjacent to the actual site of the nucleus. I: HRP-positive cells primarily located in the dorsal tegmental nucleus of Gudden, pars centralis. For abbreviations, see list. Scale bar = 0.5 mm in F (applies to A–F) and I (applies to G–I).