Menstrual Disorders Flashcards
What happens in the Follicular phase?
FSH stimulates pvarian follicle and granulosa cells to produce oestrogens raising oestrogen and inhibin by dominant follicles inhibit FSH production
Declining FSH levels cause atresia of but dominant follicle
What happens at ovulation?
Prior LH surge
Dominant follicle ruptures and release oocyte
What happens in the Luteal phase?
Formation of corpus luteum
Progesterone production
Luteolysis 14 days post-ovulation
What other 3 things happen at the luteal phase?
Progesterone-induced glandular secretory activity
Decidualisation in late secretory phase
Endometrial apoptosis and subsequent menstruation
What happens at the proliferative phase?
Oestrogen-induced growth of endometrial glands and stroma
What happens at menstruation?
Arteriolar constriction and shedding of functional endometrial layer
Fibrinolysis inhibits scar tissue formation
Describe menstrual loss
Usually lasts 4-6 days
Menstrual flow peaks at day 1-2
<80ml per menstruation
No clots
What is the normal menstrual cycle?
Average 28 day cycle
Between 21-35 day cycle
No IMB or PCB
What is Menorrhagia?
Prolonged and increased menstrual flow
What is Metorrhagia?
Regular intermenstrual bleeding
What is Polymenorrhoea?
Menses occuring at <21 day interval
What is Polymenorrhagia?
Increased bleeding and frequent cycle
What is Menometrorrhagia?
Prolonged menses and intramenstrual bleeding
What is Amenorrhoea?
Absence of menstruation >6 months
What is Oligomenorrhoea?
Menses at intervals of >35 days