[Neurohormonal regulation of male gonad function]

In a survey the neurohormonal regulatory mechanisms are discussed which control the incretory and spermiogenetic function of the testicles in adulthood. The central position of LH-RH and the factors influencing its secretion, the negative feedback between the testicular hormones including inhibin and the hypophyseal gonadotropins as well as the periodic changes superimposed to the basal secretion of the sexual hormones are explained. Finally, the present knowledge is summarized on the cooperation of the different hormones and mechanisms in the regulation of the incretory and excretory testicular functions.