gynae intro Flashcards
(36 cards)
what are the 2 types of looking at menstrual cycle
ovarian
uterine
how long is the average menstrual cycle
23-35 days
28 most common
what is the ovarian cycle based of
hormonal changes in ovaries
follows the developemnt and release of egg
what is the uterine cycle based of
changes occuring in uterus lining
prepares for implantation of fertilised egg
what are the 3 main phases of the ovarian cycle
1) follicular phase
2) ovulation phase
3) luteal phase
what days of cycle is follicular phase
day 1-3
what happens in folliucular phase
folliculogenesis + follicide maturation
describe hormone levels in follicular phase
low oestrogen
low progesterone
what day of cycle is ovulation phase
day 14
what happens in ovulation phase
follicile releases an egg
describe hormone levels in ovulation phase
high oestrogen
this is mediated by LH surge on day 12-13 (36hr pre ovulation)
what day of cycle is luteal phase
day 15-28
what happens in luteal phase
- follicle accumulates fatty deposits + cholesterol
- becomes corpus luteum
- secretes progesterone
describe hormone levels in luteal phase
high progesterone
what is the best marker for ovulation
mid luteal progesterone
this occurs at cycle length minus 7 days
what are the 3 stages of the uterine cycle
1) menses
2) proliferative
3) secretory
what days of cycle is menses
day 1-5
what happens in menses
bleeding
describe hormone levels in menses
low oestrogen
low progesterone
what day of cycle is proliferative
day 6 -14
what happens in proliferative phase
uterus lining endometrium gets thick
describe hormone levels in proliferative phase
high oestrogren
what day of cycle is secretory phase
day 15-28
what happens in secretory phase
uterine lining secrets hormones + increases mucus production
