Section 5-1 The Developing Baby (The Developing Child)

Zygote

1st stage of development; fertilized egg; takes 2 weeks; travels down Fallopian Tube and attaches itself to thickened lining of uterus

Embryo

2nd stage of development; developing baby from about the 3rd-8th weeks of pregnancy; grows rapidly

Umbilical Cord

4th important change of pregnancy; food and oxygen carried to baby through it

Ovum

A female cell or egg; released by one of a woman's ovaries monthly

Sperm

Male cell that fertilizes ovum

Fetus

Name for the unborn baby from about 8th or 9th week of pregnancy until birth; 3rd and last stage of pregnancy

Prenatal Development

Physical changes that take place before a baby is born

Amniotic Fluid

Protects the developing baby; cushions the embryo from any bumps or falls that the mother might have

Uterus

The organ in a woman's body in which a baby develops during pregnancy; takes 2-3 days; egg moves through Fallopian Tube to the uterus

Placenta

Tissue that develops 3rd during pregnancy; very rich in blood vessels

Conception

When the ovum and sperm unite