Blotched Blue Tongue (T. nigrolutea) Blotched Blue Tongue Lizard - Image courtesy of Matt Clancy, Wikimedia. All have similar care requirements, but it's best to research the specific one you have to make sure youâre looking after it the best you can.
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.
In response to gonadotrophin-releasing hormone from the hypothalamus, the pituitary gland produces luteinising hormone which travels in the bloodstream to the gonads and stimulates the production and release of testosterone.n women, testosterone is produced by the ovaries and adrenal glands. The majority of testosterone produced in the ovary is converted to the principle female sex hormone, oestradiol.