AQA Biol5: The Menstrual Cycle

Flashcards on the menstrual cycle from AQA Biol5

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Where is FSH released from?
The pituitary gland
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What does FSH do?
It stimulates the development of a follice and stimulates the release of oestrogen
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Where is oestrogen released from?
The ovaries and also the follicle
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What does low concentrations of oestrogen do?
It stimulates the thickening of the uterus lining and inhibits the release of FSH
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What does a high concentration of oestrogen do?
It stimulates the release of FSH and LH
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Where is LH released from?
The pituitary gland
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What does LH do?
It stimulates ovulation (ruptures follicle releasing the egg) and stimulates the ruptured follicle to turn into a corpus luteum
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Where is progesterone released from?
The corpus luteum
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What does progesterone do?
It inhibits the release of FSH and LH and maintains the uterus lining
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What happens if no embryo implants?
The corpus luteum stops releasing progesterone which means LH and FSH are no longer inhibited. The cycle starts again.
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Other cards in this set

Card 2

Front

What does FSH do?

Back

It stimulates the development of a follice and stimulates the release of oestrogen

Card 3

Front

Where is oestrogen released from?

Back

Preview of the front of card 3

Card 4

Front

What does low concentrations of oestrogen do?

Back

Preview of the front of card 4

Card 5

Front

What does a high concentration of oestrogen do?

Back

Preview of the front of card 5
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