menstrual cycle and pubery Flashcards
(17 cards)
1
Q
whats the main reproductive hormone for men
A
testosterone
2
Q
wheres testosterone produced
A
testes
3
Q
main reproductive hormone for women
A
oestrogen
4
Q
wheres oestrogen produced
A
ovaries
5
Q
how long in the menstrual cycle
A
28 days
6
Q
what happens in stage 1
A
- menestration [bleeding]
- uterus lining breaks down
7
Q
what happens in stage 2
A
- uterus lining build up again
8
Q
what happens in stage 3
A
- egg develops and is released from the ovary on day 14 = ovulation
9
Q
what happens in stage 4
A
- uterus wall is mantiained until day 28
- if egg is not fertlised cycle will start again
10
Q
in stage 1 what hormone is realeased
A
- FSH
follicle stimulating hormone
11
Q
what is the FSH and where is it produced
A
- pituitary gland
- causes egg to mature in ovaries = in structure called follicle
- stimulates ovaries to produce oestrogen
12
Q
what hormone is relases by the ovaries in stage 2
A
oestrogen
13
Q
what does oestrogen do
A
- causes uterus lining to grow
- stimulates release of LH & inhibits FSH
14
Q
what hormone is released in stage 3 by the pituitary galnd
A
LH
luteinising hormone
15
Q
what does LH do
A
stimulates release of egg on day 14 = ovulation
16
Q
what hormone is released in stage 4 in the ovaries by remains of follicle
A
progesterone
17
Q
what does progesterone do
A
- maintains the lining of the uterus
- when levels of progesterone fall = lining breaks down
- inhibits release of LH & FSH
