Menstrual Cycle Flashcards
what is primary amenorrhoea
the failure to establish menstruation by 16 years old
what is secondary amenorrhoea
stopping of a previously normal menstruation for over 6 months
what is oligomenorrhoea
infrequent menstruation
what is menorrhagia
excessive menstrual loss
how to fibroids cause menorrhagia
by increasing the surface area
what are common causes for menorrhagia
fibroids, polyps, endometrial cancer, bleeding disorders
what is dysmenorrhoea
pain during menstruation
what is endometriosis
growth of plaques made of endometrium growing outside of the uterus
what can you give to treat endometriosis
GnRH against - this will desensitise the GnRH receptors to switch off the HPG axis and so oestrogen won’t be produced to help the plaques grow
why are GnRH agonists not good for long term treatment
the lack of oestrogen produced can cause osteoporosis
what are the 2 layers which make up the endometrium
- functional layer
2. basal layer
what is the functional layer of the endometrium
the hormone responsive layer which grows and sheds if fertilisation doesn’t occur
what is the basal layer of the endometrium
the cells that grow to give the functional layer
true or false: low levels of oestrogen cause a positive feedback response
false
true or false: high levels of oestrogen cause a positive feedback response
true