Where do girls give birth to children?

Girls learn physiological knowledge bit by bit. It's like when they are in their teens, they don't even know what "menstruation" is, but by their twenties, they already know about the preparation period for pregnancy and why they get pregnant.

For women who have had pregnancy experience, the entire process from pregnancy to birth is already very familiar. But for single women, they don't even know where to give birth to children. This article will popularize some basic knowledge about women's pregnancy. Let's take a look.

Where do babies come from?

Babies are born from their mothers' wombs. There are two ways they are born:

1. Choose natural birth: from the mother's uterus to the vagina, and finally out of the vagina. The vagina is the passage for women's menstruation to be discharged and the place of sexual intercourse. The vaginal wall has many crazy wrinkles, so it has a good expansion function, great elasticity and flexibility. The fetal head can be born little by little from the vagina and successfully reach the world.

2. Caesarean section: If the fetus is too large or the pregnant woman does not want to choose a natural birth, a caesarean section will be performed. The obstetrician and gynecologist will perform surgery to cut open the pregnant woman's lower abdomen, then cut open the uterus, and take the baby out.

Many people feel that choosing natural childbirth is a way of childbirth that follows the laws of nature, and that the children born are smarter, so they choose natural childbirth reluctantly. After a normal birth, the wound left on a woman's private parts is relatively small and can be healed in a few days; while the wound caused by a caesarean section is relatively large and takes a long time to heal.

1. How do male sperm and egg cells fuse together?

After the egg cell is released from the ovary, it enters the fallopian tubes to wait for fertilization. After the semen is ejaculated into the vagina at night, it enters the uterine cavity and has the ability to fertilize after contacting the uterine wall. Later, the sperm will meet the egg cell, and the sperm will release an enzyme (acrosome enzyme). Through hydrolysis, the sperm can pass through the corona radiata and zona pellucida around the egg cell. When the head of a male sperm touches the surface of the egg cell, sperm-egg fusion begins. When the egg pronucleus combines with the sperm pronucleus, fertilization occurs.