what type of stimulus triggers secretion of gonadal sex hormones
The hypothalamus-pituitary-gonadal (HPG) axis. 1  Sex hormone synthesis is controlled by the pulsatile release of hypothalamic gonadotropin-releasing hormone (GnRH)  At the pituitary gland, GnRH stimulates the release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) into the general circulation.