From Sperm toBaby
Step-by-Step Journey of Human
Reproduction
2.
Step 1: Ejaculationand Sperm
Release
• Millions of sperm are released into the vagina
during sexual intercourse. They begin their
journey toward the fallopian tubes.
3.
Step 2: Ovulation
•Around the middle of a woman's cycle, an egg
is released from the ovary into the fallopian
tube, ready for fertilization.
4.
Step 3: Fertilization
•One sperm successfully enters the egg,
forming a zygote. This usually happens in the
fallopian tube.
5.
Step 4: Zygoteto Blastocyst
• The zygote begins dividing into more cells and
becomes a blastocyst as it travels toward the
uterus.
6.
Step 5: Implantation
•The blastocyst implants into the lining of the
uterus, marking the start of pregnancy.
7.
Step 6: EmbryoDevelopment
• The implanted blastocyst is now called an
embryo. It begins forming tissues, organs, and
the placenta.
8.
Step 7: FetusStage
• After 8 weeks, the embryo is called a fetus.
Growth and organ development continue.
9.
Step 8: Full-TermPregnancy
• Pregnancy lasts around 40 weeks. The fetus
matures and prepares for birth.
10.
Step 9: Laborand Birth
• Labor begins with uterine contractions. The
baby is delivered through the birth canal, and
the umbilical cord is cut.
