Monoamine distribution in primate brain. III. Catecholamine‐containing varicosities in the hypothalamus of Macaca mulatta

Abstract
The histochemical fluorescence technique of Falck and Hillarp was used to examine the distribution of catecholamine-containing varicosities within the hypothalamus of the rhesus monkey (Macaca mulatta). Varicosities were seen in heaviest concentrations within the periventricular area and the following nuclei: lateral and medial preoptic, supraoptic, paraventricular, arcuate and dorsomedial. Patterns observed presented striking similarities and dissimilarities to catecholamine distribution reported in the rat and cat. Catecholaminergic perikarya were not observed routinely.

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