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孕卵着床与妊娠的成立,是人类及所有哺乳动物生命过程和种属繁殖的最关键环节,如果能深入地了解这一时期的生理过程,就可以有效地控制人口的增长及动物的繁殖,为发展新型有效的避孕措施提供依据。本文仅就以下几方面进行概括性阐述。一、孕体分泌物在妊娠成立中的作用人类和其他哺乳动物的卵巢功能均呈周期性变化,卵巢黄体功能周期性衰退并开始新的周期,一旦妊娠发生,则中止这种周期性变化,黄体功能延长,使妊娠成立和维持。那么,母体怎样能识别孕体的存在呢?是很多学者所关注的问题。孕体向母体分泌
The establishment of pregnancy egg implantation and pregnancy is the most crucial step in the process of human and all mammalian life processes and species reproduction. If we can understand the physiological process during this period, we can effectively control the population growth and animal reproduction , To provide a basis for the development of new and effective contraceptive measures. This article only summarizes the following aspects. First, the role of pregnant secretions in the establishment of pregnancy Ovarian function in humans and other mammals showed periodic changes, ovarian luteal function periodically decline and start a new cycle, once the pregnancy occurs, then discontinue this cyclical changes, Prolongation of luteal function, the pregnancy set up and maintained. So, how can the mother recognize the existence of the pregnant body? It is the concern of many scholars. Pregnant body to the maternal secretion