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BIOLOGY SCIENCE
homeostasis and response
Contraception
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Cards (35)
What is the main purpose of contraception?
To prevent pregnancy
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How does understanding the process of pregnancy help in discussing contraception?
It helps to understand how contraception
interrupts
the
pregnancy process
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What hormone stimulates an egg to develop in the ovaries?
FSH
(
Follicle Stimulating Hormone
)
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What triggers ovulation in the female reproductive system?
LH
(
Luteinizing Hormone
)
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What happens to a fertilized egg after it forms?
It travels to the uterus to
implant
into the
wall
and develop into a
fetus
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What is the
cervix's
role in the female reproductive
system
?
It is
the entrance
to the
uterus
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How can contraception interrupt the pregnancy process?
By preventing
sperm
from meeting the
egg
or
inhibiting egg development
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What are the two main categories of contraception methods?
Hormonal
methods
Non-hormonal
methods
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What do hormonal contraceptive methods rely on?
They rely on releasing
estrogen
,
progesterone
, or a
combination
of both
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How does estrogen affect FSH production?
Estrogen inhibits
the
production
of
FSH
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What is the effect of progesterone on
the
cervix?
It stimulates the production of thick mucus to prevent sperm from reaching
the
egg
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What is the combined oral contraceptive pill commonly referred to as?
The pill
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How effective is the combined oral contraceptive pill at preventing pregnancy?
Over
99
% effective when taken properly
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What are some side effects of the combined oral contraceptive pill?
Headaches
and
nausea
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What is the progesterone-only pill's effectiveness compared to the combined pill?
It is just as effective but tends to have fewer side effects
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What is the contraceptive patch?
A small sticker that releases estrogen and progesterone
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How long does each contraceptive patch last?
One week
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What is the contraceptive injection?
An injection of
progesterone
that lasts
two
to
three
months
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What is the contraceptive implant?
A small device placed under the
skin
that releases
progesterone
for up to
three
years
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What does the intrauterine device (IUD) do?
It is placed inside the
uterus
and can release
progesterone
or be
copper-based
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How does the copper IUD prevent pregnancy?
It prevents sperm from surviving in the uterus
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How long can both types of IUD last?
Over three years
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What are the main differences between hormonal and non-hormonal contraceptives?
Hormonal contraceptives:
Release hormones to prevent
ovulation
or
thicken cervical mucus
Examples:
pills
,
patches
,
injections
,
implants
,
IUDs
Non-hormonal contraceptives:
Prevent
sperm
from meeting the
egg
Examples:
condoms
,
diaphragms
,
spermicides
,
sterilization
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How do condoms function as a contraceptive method?
They are worn over the penis to trap sperm
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What is the purpose of female condoms?
To trap
sperm
inside the
vagina
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What is unique about condoms compared to other contraceptive methods?
They are the only method that also protects against
STDs
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What is a diaphragm in terms of contraception?
A
shallow plastic cup
that
fits over
the
cervix
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Why must a diaphragm be used with spermicide?
Because it is not very
reliable
on its own
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What is the effectiveness of spermicides as a contraceptive method?
They work about
seven
out of
ten
times
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What does sterilization in women involve?
Cutting
or
tying
the
fallopian tubes
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Why is female sterilization considered permanent?
Because it prevents
eggs
from passing from the
ovaries
to the
uterus
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How can men undergo sterilization?
By having their
sperm ducts
cut and
tied
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What are natural methods of contraception?
Methods like
timing intercourse
or
stopping before ejaculation
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Why are natural methods of contraception considered unreliable?
Because they do not
consistently
prevent
pregnancy
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What is the only method that guarantees 100% prevention of pregnancy?
Abstaining from sex
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