Human Reproduction: Process of Birth (बच्चा कैसे पैदा होता है?)

The process begins when a male sperm cell merges with a female egg cell (ovum) inside the female's fallopian tube. This fusion creates a single cell called a Zygote. This is the very first stage of a new human life.

• The zygote rapidly divides into many cells to form an embryo, which travels down and attaches itself to the lining of the uterus (womb). This attachment is called implantation.
• A special tissue called the Placenta forms. The placenta connects the mother's blood supply to the baby via the umbilical cord, providing oxygen and nutrients while removing waste.
• Over 9 months (the gestation period), the embryo develops organs, bones, and a brain, eventually becoming a fully formed fetus.

After approximately 38 to 40 weeks, the baby is fully developed and ready to be born.

• The mother's brain releases a hormone called Oxytocin, which causes strong muscle contractions in the uterus (labor pains).
• These contractions push the baby down through the cervix and out of the mother's body through the birth canal (vagina).
• Once the baby is out, the umbilical cord is cut, and the baby takes its first breath of air.