female reproductive system Flashcards

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1
Q

How often is an egg produced?

A

every 28 days

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2
Q

what happens on day 1

menstrual cycle

stage 1

A

menstruation starts
the uterus lining breaks day for about four days

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3
Q

what happens on day 4

menstrual cycle

stage 2

A

the uterus lining builds up again, from day 4 to day 14, into a thick, spongy layer full of blood vessels, ready to recieve a fertilised egg

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4
Q

what happens on day 14

menstrual cycle

stage 3

A

ovulation- an egg is released from the ovary

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5
Q

what happens from day 14- day 28

menstrual cycle

stage 4

A
  • The wall is maintained
  • if no fertilised egg has landed on the uterus wall by day 28, the spongy lining begins to break down and the whole cycle starts again
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6
Q

FSH- follicle-stimulating hormone

A
  • produced in the pituarity gland
  • causes an egg to mature in one of the ovaries, in a structure called a follicle
  • stimulates the ovaries to produce oestrogen
  • oestrogen then inhibits the release of FSH
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7
Q

What does oestrogen inhibit the release of

A

FSH

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8
Q
A
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