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The Hypothalamo-Pituitary Unit, Testis, and Male Accessory Organs
Physiology of the Male Gonadal Axis Gonadotropin-releasing hormone (GnRH), luteinizing hormone (LH), follicle-stimulating hormone (FSH), testosterone (Te), and estradiol (E 2 ) are the major ligands (hormones) of the male gonadal axis. Pulsatile secretion of these hormones allows feedforward (stimulatory)…