female reproductive system Flashcards
1
Q
How often is an egg produced?
A
every 28 days
2
Q
what happens on day 1
menstrual cycle
stage 1
A
menstruation starts
the uterus lining breaks day for about four days
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
4
Q
what happens on day 14
menstrual cycle
stage 3
A
ovulation- an egg is released from the ovary
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
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
7
Q
What does oestrogen inhibit the release of
A
FSH
8
Q
A
