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FOETAL DEVELOPMENT IN FOETAL DEVELOPMENT IN THE WOMBTHE WOMB
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THE BEGINNING…
Fertilisation = 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.
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4 WEEKS IN THE WOMB
The Embryo is attached to the mother’s uterus.
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7 WEEKS IN THE WOMB
What changes do you notice?
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7 WEEKS IN THE WOMB
What other changes do you notice?
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7 WEEKS IN THE WOMB
What else do you notice?
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How do you think the foetus receives its nutrition?
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11 WEEKS IN THE WOMB
What changes do you notice?
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12 WEEKS IN THE WOMB
What changes do you notice in the feet?
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12 WEEKS IN THE WOMB
What 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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3-4 MONTHS IN THE WOMB
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
DURING 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 the gums.
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WEEK 14• Head - face, eyes,
retina, eyelids and eyebrows form.
• Ears & bones in the middle ear form.
• Nostrils form.• Vocal cords develop. • Intestines & pancreas
develop.• Arms, hands,
fingernails, legs, toenails & muscles form.
• Brain forms.
A scan of a baby in the womb at 14 weeks.
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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 INCHES
Look at these measurements with a ruler.
• 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.
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A NEW BORN BABY
What was your birth weight?
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BIRTH DEFECTS
Has anyone heard about Birth Defects?
Have you heard of these ?
• 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.
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SPINA BIFIDA
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 BABY’S BRAINWhat 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