GnRH冲动源发生器位于下丘脑中央基底部，下丘脑中央基底部中含有具有转换器作用的GnRH神经元，GnRH神经元可将来自下丘脑的青春发动的神经信号转换为化学信号——GnRH，信号以脉冲式释放，GnRH脉冲式释放的频率和幅度调控垂体Gn的释放。
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