Pregnancy and Birth

Term Definition
Pregnancy the time when a fertilized egg grows and develops into a baby in the woman's uterus
Embryo The time that the ovum and the sperm unite until the end of the eighth week, the developing human is call an embryo
Fetus The developing human is called a fetus from the eighth week until birth
Placenta an organ that grows in the woman's uterus during pregnancy and allows nutrients, gases, and wastes to be exchanged between the mother and the fetus
Birth The passage of a baby from it's mothers uterus to outside of her body

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