1375375
Description
Mind Map by Chloe Yong, updated more than 1 year ago
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Created by Chloe Yong
over 9 years ago
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Menstrual Cycle
- The menstrual cycle is a woman's
monthly reproductive cycle, Every
month a egg is developed in one of
the ovaries and then released, in a
process called ovulation.
- There are four types of hormones
involved: FSH, LH, oestrogen and
progesterone.
- FSH- the pituitary gland.
Stimulates the development of
an egg inside a follicle.
Stimulates the ovary to release
oestrogen
- Oestrogen- Ovary.
Causes uterus lining to
thicken. Inhibits
production of more FSH.
Stimulates the pituitary
gland to produce LH.
- LH- Pituitary gland.
Causes ovulation-
release of an egg from
an ovary.
- Progesterone- Ovary.
Maintains the lining of
the uterus.
- FSH- the pituitary gland.
Stimulates the development of
an egg inside a follicle.
Stimulates the ovary to release
oestrogen
- Hormones control the development of
eggs and ovulation, we can use
hormones as contraceptives, and we
can also use them in fertility treatment
to help couples to conceive a baby.
- The contraceptive pill contain oestrogen and
progesterone. High levels of these hormones
inhibit the production of FSH. No FSH means
no egg develops, no ovulation and therefore
no baby.
- A common cause of infertility is low levels of
FSH, so tht eggs do not mature and cannot be
released. Treatment involves taking FSH to
stimulate egg production.
- it is taken orally, which is
easier and more pleasant
- it is very effective- 99% of
women do not get pregnant.
- it can make periods lighter
and less painful
- it can make periods lighter
and less painful
- it is very effective- 99% of
women do not get pregnant.
- it gives no protection against
sexual transmitted diseases
- It can have side effects, such as
headaches, nausea, irregular
periods and water retention. it it
also thought to increase the risk
of deep vein thrombosis and
heat disese.
- It can have side effects, such as
headaches, nausea, irregular
periods and water retention. it it
also thought to increase the risk
of deep vein thrombosis and
heat disese.
- To minimise risks, modern day
pills have lower doses of
oestrogen and there is also a
progesterone pill that has even
fewer side effects and a lower
risk of heart disease.
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