(四) 对生殖系统的作用人们熟知PG对生殖系统的影响具有重要意义,PG在松果体、下丘脑—垂体系统以及在卵巢、输卵管、子宫的作用已有大量研究。PGs能作用于下丘脑及脑下垂体以调节垂体激素的释放。在松果体PGE、PGF的含量随动情期而间接地出现周期性的消长,动情前期PG的水平升高,动情期可达峰值,动情后期则又下降,到间情期降到 (D) of the role of the reproductive system Well-known PG on the reproductive system of great significance, PG in the pineal, hypothalamic-pituitary system and in the ovary, tubal, uterine function has been a lot of research. PGs can act on the hypothalamus and pituitary gland to regulate the release of pituitary hormone. PGE in the pineal gland, PGF content with the estrus indirect cyclical growth and decline, pre-estrus PG levels increased, estrus up to the peak, estrus later decreased again, fell to the period of estrus