## Chapter 9/Figure 7.jpg Back | Home | Next | Differential distribution of various afferents in the cholinergic forebrain. (A) - (B)-(C), (G), (I) Composite maps illustrating putative zones of contacts between afferent fibers and cholinergic neuronal elements following PHA-L injections into the (A) far-lateral hypothalamus, (B) mid-lateral hypothalamus, (C) medial hypothalamus, (I) locus coeruleus. (G) shows the distribution of putative contact sites from a material stained for dopamine-ß-hydroxylase and choline acetyltransferase. (H): PHA-L labeled terminal varicosities (arrow) in close apposition to a proximal dendrite of a cholinergic neuron. The grid simulates the ocular reticle used to screen sections for high magnification (63x) light microscopic analysis. One division of the grid = 16 microns. Cholinergic neurons are represented by dots. Zones of putative contacts between cholinergic elements and terminal varicosities are depicted as solid squares (corresponding to 80 x 80 µm areas in the section). (D), (E), (F) location of labeled cells at the PHA-L injection sites from cases depicted in (A), (B), (C). Panels (A), (B), (C), (H) are modified from Cullinan and Zaborszky [57] with kind permission from Wiley-Liss. Panels (G) and (I) are modified from Zaborszky et al. [51], with permission from Elsevier Science.