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Foetal development in the
womb
LCA Social Education
Module 4
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The beginning
Fertilization = the joining of
the sperm and the egg in thefallopian 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 aFoetus.
an Embryo
This is a fertilized
egg only 30 hours
after conception
http://www.wpclinic.org/image/photos/ovum434x280.jpg -
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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 12weeks in the wombWhat changes do you notice in
the hand?
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Why do you think the Amniotic Sac is veryimportant?
16 week foetus
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A foetus at 3-4 monthsWhat 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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SummaryFoetal Development
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What happens overthe 40 weeks?
Week 4: The placentadevelops
Week 6: Umbilical corddevelops, first heart beatbegins, buds for arms andlegs form
Week 8: elbows and feet beginto grow, teeth develop undergums
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week 14
head-face, eyes,retina, eyelids andeyebrows, ears,bones in the middleear, 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
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from 24 weeks
Week 24: eyes andears develop and move to
their proper position
throughout the trimester
Week 26: brain wavesfor sight and sound
Week 27: eyes startopening and retinas start
growing
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Weight and InchesWith a ruler look at these measurements
4 months: the babyslength is 4.5 inches
5 months: the babyslength is 10 inches.
6 months: the babyslength is 12 inches
and weighs more thana 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 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 apregnant woman to take
Folic Acid, especially in the
first 12 weeks of the
pregnancy?
http://images.google.co.uk/imgres?imgurl=http://www.topnews.in/files/folic-acid.jpg&imgrefurl=http://www.topnews.in/folic-acid-supplements-could-be-dangerous-men-2138398&usg=__C1CFhKaxn8-fRqskXvk3xpPin6k=&h=463&w=300&sz=46&hl=en&start=1&um=1&tbnid=il_aasCXvm4vzM:&tbnh=128&tbnw=83&prev=/images%3Fq%3Dfolic%2Bacid%26hl%3Den%26rlz%3D1T4SKPB_enIE257IE258%26um%3D1 -
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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 developmentof a baby in the womb?
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The End