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.
Gonadal sex steroids effects are mediated by slow genomic mechanisms through nuclear receptors as well as by fast nongenomic mechanisms through membrane-associated receptors and signaling cascades. The term sex steroids is nearly always synonymous with sex hormones (Wikipedia). Steroid hormones in mammals regulate diverse physiological functions such as reproduction, mainly by the hypothalamic-pituitary-gonadal axis, blood salt balance, maintenance of secondary sexual characteristics, response to stress, neuronal function and various metabolic processes(fat, muscle, bone mass).