The female reproductive system Flashcards
1
Q
T H E C Y C L E
A
- Ovarian cycle consists of follicular phase and luteal phase after day 14 when LH levels are reduced
- In the endometrial cycle, there is the menses when FSH and LH are low during your period, then the proliferative phase up till day 14 and then the secretory phase were lots of hormones are secreted
2
Q
O V A R I A N F O L L I C L E
A
- 2-3 oocytes are released into the fallopian tube and mature to become responsive to hormones
- They increase in FSH receptors
- FSH stimulates meiosis to make one mature dominant follicle where it contains both FSH and LH receptors
- Granulosa cells release oestradiol in late follicular phase which contain oestrogen receptors
- At one point of the follicular phase, there is an LH surge which releases oocyte with granulosa – stimulating meiosis
- Any cells left behind form corpus luteum
- There are 14 days of the luteal phase until apoptosis occurs
- LH receptors progressively become less responsive to LH
