[Pattern and efferent paths of LHRH neurons in man (author's transl)].

LHRH neurons have been studied by immunofluorescence on slides using rabbit immunosera against unconjugated synthetic LHRH. In Man they form four main groups localized in the medio basal hypothalamus (infundibular nucleus, post-infundibular eminence, premammillary nucleus), the preopticoterminal area, the septum (and pericommissural area), the retromammillary area and the rostral mesencephalon. They give rise, respectively, to the hypothalamo-infundibular LHRH tract, the preoptico-terminal LHRH tract, lastly to various extra-hypophyseal LHRH tracts, ending in the epithalamic area, the telencephalon and the mesencephalon.