1. Pregnancy
Year 8 Science

2. Sequence
ovulation
fertilization
implantation
growth
birth

3. Copulation: Two people joining together for sexual reproduction
Ejaculation: The process of sperm and seamen leaving the penis
Fertilisation: When one sperm penetrates the egg
Zygote: When the sperm meets the egg and forms the first few cells of a baby
Blastocyst: A fluid filled sack full of cells
Implantation: The blastocyst attaches to the uterus lining
Embryo: Developing baby <9 weeks old
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4. Development of the fetus

5. Amniotic Fluid: Protects the embryo and keeps temperature constant
Placenta: Allows nutrients and oxygen from the mother to enter the baby, Allows the babies wastes such as carbon dioxide to be removed via mother.
Fetus: Developing baby >9 weeks old
Labour: This process involves the birth of the baby
Afterbirth : Involves the placenta leaving the mother
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6. Development of the Embryo

7. The baby is connected to the placenta by the umbilical cord The baby and mothers blood do not mix

8. Stages of Labour Abdominal pain – uterus contracting and relaxing
Abdominal pain becomes stronger and closer together
Dilation occurs - the cervix relaxes and widens
The baby’s head starts to pass through the cervix
The baby is born
Stages of Labour

9. Stages of Labour Continued…
The umbilical cord is cut and tied
After birth - placenta is expelled from the mother
Stages of Labour Continued…

10. Birth