Foetal development in the Foetal development in the wombwomb
LCA Social Education
Module 4
The beginning…
Fertilization = the joining of the sperm and the egg in the fallopian tube to form a unique human being.
For the first 8 weeks it is known as an Embryo. After 8 weeks it is known as a Foetus.an Embryo
This is a fertilized egg only 30 hours after conception
4 weeks
The Embryo is attached to the mother’s uterus.
A foetus at 7 weeks in the wombWhat changes do you notice?
A foetus at 7 weeks in the wombWhat other changes do you notice?
A foetus at 7 weeks in the womb
What else do you notice?
How do you think the foetus receives its nutrition?
A foetus at 11 weeks in the wombWhat changes do you notice?
A foetus at 12 weeks in the wombWhat changes do you notice in the feet?
A foetus at 12 weeks in the wombWhat changes do you notice in
the hand?
Why do you think the Amniotic Sac is very important?
16 week foetus
A foetus at 3-4 months What developments do you notice in the foot?
What other changes do you see at 4 months?
What changes do you see at 5 months?
9 months – full term
Summary Foetal Development
What happens over the 40 weeks?
Week 4: The placenta develops
Week 6: Umbilical cord develops, first heart beat begins, buds for arms and legs form
Week 8: elbows and feet begin to grow, teeth develop under gums
week 14• head-face, eyes,
retina, eyelids and eyebrows, ears, bones in the middle ear, nostrils
• vocal cords, intestines, pancreases, arms, hands, fingernails, hair, legs, toenails, fat, placenta, brain, muscles.
A scan of a baby in the womb at 14 weeks
from 24 weeks
• Week 24: eyes and ears develop and move to their proper position throughout the trimester
• Week 26: brain waves for sight and sound
• Week 27: eyes start opening and retinas start growing
Weight and InchesWith a ruler look at these measurements
• 4 months: the baby’s length is 4.5 inches
• 5 months: the baby’s length is 10 inches.
• 6 months: the baby’s length is 12 inches and weighs more than a 1 pound
A new born baby
What was your birth weight?
Birth Defects
Has anyone heard about Birth Defects?
Have you heard of these ones?
• Down Syndrome• Cerebral Palsy• Cystic Fibrosis• Cleft Palate• etc
…these defects are Genetic.
Some are non-genetic and can be avoided. Let’s look at a couple of examples:
Spina Bifida
From looking at the picture what is Spina Bifida?
Why is it important for a pregnant woman to take Folic Acid, especially in the first 12 weeks of the pregnancy?
Foetal Alcohol Syndrome (FAS)From looking at the pictures - What is FAS & What do
you think causes it?
The Effect of Foetal Alcohol Syndrome (FAS) on a baby’s brain
What differences do you notice?
How do you think Smoking & Drugs affect the development
of a baby in the womb?
The End
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