Menstrual Cycle Flashcards

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1
Q

What is the first phase of the menstrual cycle?

A

Menstrual flow phase

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2
Q

What days is the menstrual flow phase over?

A

Days 1-5

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3
Q

What happens in the follicle/proliferative phase? (4)

A
  • FSH from the pituitary gland stimulates growth of ovarian follicles
  • growing follicle releases oestrogen
  • oestrogen stimulates endometrium to rebuild
  • ovulation
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4
Q

What days are the follicle/proliferative phase over?

A

Days 6-14

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5
Q

What phase is days 15-28?

A

Luteal/secretory phase

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6
Q

What happens during the luteal phase?

A
  • corpus luteum produces progesterone > causes more build up and maintains endometrium
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7
Q

What happens if fertilisation does not occur?

A

Corpus luteum breaks down&raquo_space; progesterone secretion stops&raquo_space; endometrium breaks down

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8
Q

What day does ovulation occur?

A

Day 14

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9
Q

When in the cycle does temperature spike?

A

At ovulation

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10
Q

What is the left over follicle called after the egg is released?

A

Corpus luteum

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11
Q

In what order to the 2 key hormones appear in?

A

Estrogen, then progesterone

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12
Q

What is the hormonal trigger for menstruation?

A

No HCG from embryo&raquo_space; corpus luteum breaks down&raquo_space; progesterone secretion stops&raquo_space; endometrium breaks down

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