The uterus is the main internal reproductive organ, where the embryo is conceived and the fetus grows. The cervix is the opening of the uterus and is an integral part of the uterus.
It plays the following important roles in completing the reproduction and fertility process:
(1)The cervix is the first barrier for sperm to pass. It secretes mucus. As the menstrual cycle changes, the cervical mucus becomes thinner under the influence of estrogen, making it easier for sperm to pass through.
(2)The cervical canal is where sperm is stored. There are many crypts and fissures in its inner wall. Sperm can be temporarily stored for 1 to 2 weeks, and then enter the uterus after gaining energy.
(3)After pregnancy, in order to adapt to the growth of the fetus, the uterus continues to grow, but the cervix remains closed. This ensures that the fetus can grow safely in the womb until the pregnancy is full term.
(4)When the pregnancy is full term, the cervix gradually softens and begins to expand during delivery, and the uterine opening widens from 0.5 cm to 10 cm, opening the first step for the smooth delivery of the fetus. The door. Therefore, the cervix is the only way for the fetus to be delivered.
(5) Some people believe that the cervix is also a sexually sensitive organ and has a certain relationship with sexual life.
This article is provided by Baidu Reading and is excerpted from \”The Clear \”Conception\” Plan\” Author: Sun Jianqiu and Xie Yingbiao