GCSE Biology B3 - Hormones controlling the menstrual cycle

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Which hormone causes the follicle to mature in the ovaries?
Follicle stimulating hormone (FSH)
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Where is FSH secreted from?
The pituitary gland
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Does FSH inhibit or stimulate the production of oestrogen?
Stimulate
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What is the function of oestrogen?
It causes the uterus lining to thicken and repair
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Where is oestrogen secreted from?
Oestrogen is secreted from the ovaries
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Which hormone is inhibited by oestrogen?
FSH
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Which hormone is stimulated by oestrogen?
Luteinising hormone (LH)
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Where is LH secreted from?
The pituitary gland
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What does a surge in the hormone LH do?
An LH surge triggers ovulation (the release of the egg from the follicle) at day 14
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After the egg leaves the follicle, what do we call the remaining shell?
A corpus luteum
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Which hormone does the corpus luteum secrete?
Progesterone
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What does the hormone progesterone do?
It maintains the uterus lining in the middle of the cycle and through pregnancy
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Which two hormones does progesterone inhibit?
FSH and LH
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The fall of which two hormones triggers menstruation?
Oestrogen and progesterone
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If a women gets pregnant, which hormone remains high?
Progesterone, to maintain the uterus lining
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Why is a thick uterus lining needed in pregnancy?
It supplies the placenta with oxygen, glucose and nutrients. It also takes away waste products such as carbon dioxide and urea.
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Card 2

Front

Where is FSH secreted from?

Back

The pituitary gland

Card 3

Front

Does FSH inhibit or stimulate the production of oestrogen?

Back

Preview of the front of card 3

Card 4

Front

What is the function of oestrogen?

Back

Preview of the front of card 4

Card 5

Front

Where is oestrogen secreted from?

Back

Preview of the front of card 5
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