Stages of pregnancy

1P5: Tuesday 7th December

Sperm are deposited into the vagina and travel up the uterus to the oviduct (200-300 million sperm are present)

Following fertilisation the sperm and egg are known as a ZYGOTE

Uterus

Oviduct

An egg is released from the ovary

3 Weeks

4 Weeks

6 Weeks

6 Weeks

8 Weeks

9 Weeks

12 Weeks

16 Weeks

20 Weeks

24 Weeks

30 Weeks

Organ Function

Placenta

Umbilical cord

Amniotic Sac

Amniotic Fluid

Provides nutrients to the developing embryo

Transports nutrients and oxygen from mother to baby and waste back. It is attached to mother and baby

Contains the Amniotic Fluid

Fluid in the amniotic sac that cushions the baby from bumps

Next lesson we are going to look at what

happens when the baby is ready to be

born, this is known as LABOUR