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Biology
B11: Hormonal Coordination
Infertility Treatments
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Cards (11)
Causes of male infertility:
Abnormal
sperm
Low
sperm
count
Erectile
Dysfunction
Causes of female infertility:
Age
Fallopian
tube damage
Uterine
damage
Different
infertility
treatments:
Artificial
Insemenation
Fertility
Drugs
In-Vitro
Fertilisation
Artificial
Insemenation
:
Sperm
from a father or a
donor
is placed into a vagina at it's
fertile
point
When is Artificial Insemenation appropriate?
If a male cannot produce
sperm
or a low
sperm
count
What are some issues about
Artificial Insemenation
?
The father has to cope with the child not being his (if sperm
donor
)
Sperm donor will never know his alleged "children"
Artificial Fertility Drugs:
A drug containing
low
doses of
FSH
and
LH
to stimulate
ovulation
In-Vitro Fertilisation
:
After being given
fertility drugs
, mature eggs are removed and put onto a petri dish
Insemenate egg until it forms an embryo (from dad or sperm donor)
[YOU CAN
FREEZE
EGGS FOR LATER USE]
Insert
embryo
into the mother's uterus / into a
surrogate
( More than one for an
increase
chance of fertilisation)
What are some disadvantages about
In-Vitro Fertilisation
?
Expensive
May have
multiple
babies
Not always
successful
Very Emotionally and Physically stressful
What are some advantages about In-Vitro Fertilisation?
Helps
infertile
/same
sex
couples a child
Embryo can potentially be screened if
healthy
How do IUDs work?
Copper IUD: Releases
copper
, which is toxic to
sperm
, stopping them from fertilising an egg.
Hormonal IUD: Releases
hormones
that thicken cervical
mucus
(making it harder for
sperm
to reach the egg) and can stop
ovulation
(release of an egg).