Multiple functions of non-hypophysiotropic gonadotropin releasing hormone neurons in vertebrates

Schematic illustration of both hypophysiotropic and non-hypophysiotropic GnRH neurons in a teleost brain. Hypophysiotropic neurons: Orange, GnRH neurons in the preoptic area. Non-hypophysiotropic neurons: Green, GnRH neurons in the terminal nerve, Pink, GnRH neurons in the midbrain tegmentum, Blue, GnRH neurons in the trigeminal nerve. Solid lines schematically illustrate axons or dendrites of GnRH neurons in each brain region, and dotted lines show likely projection