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Paper 2
Homeostatis & response (5)
IVF
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Created by
Ellie Hodgson
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Cards (9)
Sperm fertilizing an egg
How most babies are
conceived
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Fetus growing inside the mother's uterus
How most babies are conceived
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Sometimes
natural conception
is not possible due to
fertility
problems in one or both parents
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There are
5 million
children worldwide born to parents who either couldn't or had
difficulty
producing babies
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IVF
In vitro fertilization, a way of helping with
infertility
problems, has been in use since
1978
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IVF process
1.
Down-regulation
(using drugs to turn off woman's
ovaries
)
2. Boosting egg supply (injecting
FSH
to
increase
egg production)
3. Egg maturation (injecting
HCG
to cause eggs to
mature
)
4. Egg
removal
(using a
pipette
to remove eggs from woman)
5.
Sperm
collection and
processing
6. Egg and sperm
mixing
and
fertilization
7. Embryo development and transfer (embryos kept in
warm
place, then best 2-3 transferred to woman's
uterus
)
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IVF
Can
overcome
a multitude of
fertility
problems (e.g. using donor eggs/sperm, surrogate mother)
Increases
chances of success by producing
more
eggs
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IVF can be used when natural fertilization inside the body cannot occur, often due to
reproductive parts
of mother or father not
working properly
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The wonderful thing about IVF is that it can overcome a multitude of fertility problems
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