Foetal development in the womb

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Foetal development in the womb

• LCA Social Education
• Module 4

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The beginning
This is a fertilized egg only 30 hours after
conception
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
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4 weeks
The Embryo is attached to the mothers uterus.
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A foetus at 7 weeks in the wombWhat changes do
you notice?
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A foetus at 7 weeks in the wombWhat other
changes do you notice?
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A foetus at 7 weeks in the wombWhat else do you
notice?
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How do you think the foetus receives its
nutrition?
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A foetus at 11 weeks in the wombWhat changes do
you notice?
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A foetus at 12 weeks in the wombWhat changes do
you notice in the feet?
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A foetus at 12 weeks in the wombWhat changes do
you notice in the hand?
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Why do you think the Amniotic Sac is very
important?
16 week foetus
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A foetus at 3-4 months What developments do you
notice in the foot?
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What other changes do you see at 4 months?
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What changes do you see at 5 months?
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9 months full term
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Summary Foetal Development
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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
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week 14
A scan of a baby in the womb at 14 weeks

• 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.

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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

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Weight and InchesWith a ruler look at these
measurements

• 4 months the babys length is 4.5 inches
• 5 months the babys length is 10 inches.
• 6 months the babys length is 12 inches and
  weighs more than a 1 pound

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A new born babyWhat was your birth weight?
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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. Lets
  look at a couple of examples

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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?
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Foetal Alcohol Syndrome (FAS)From looking at the
pictures - What is FAS What do you think causes
it?
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The Effect of Foetal Alcohol Syndrome (FAS) on a
babys brain What differences do you notice?
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How do you think Smoking Drugs affect the
development of a baby in the womb?
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The End