menstrual cycle

Question 1

explain stages 3-4 of menstrual cycle?

Answer 1

3-egg develops and is released (ovulation)
4-wall is then maintaned if no egg comes until utuerus lining breaks down again.

Question 1

explain the stages 1&2 of the menstraul cycle?

Answer 1

1 = starts, uterus lining breaks down for abt 4 days
2=uterus lining builds up agian, thick ready to recieve a fertillised egg

Question 2

what 4 hormones in the M cycle controlled by?

Answer 2

oestrogen
-progesterone
-FSH-follicle stimulating hormone
-LH- luteninsing hormone

Question 3

what does FSH do in menstrual cycle?
stage 1

Answer 3

produced in pituary glands
-causes egg to mature in follicle
-stimulates ovaries to release oestrogen

Question 4

what does oestrogen do in menstrual cycle-stage 2

Answer 4

made in ovaries
-causes lining of uterus to grow
-stimulates release of LH

Question 5

what does LH do -stage 3

Answer 5

produced in pituraity gland
stimulates release of egg(ovulation)

Question 5

what does progesterone do in MC? stage 4

Answer 5

-keeps lining up
-when progesterone falls lining breaks down
inhibts releats of LH AND FSH

Question 6

how can oestrogen & progesterone prevent pregnancy?

Answer 6

1. prevents egg release
2. produces thick mucus to stop sperm getting through

Question 7

finish this off