menstrual cycle Flashcards
where is FSH secreted
P. Gland
what is the role of FSH
-causes egg to mature in ovaries
-stimulates ovary to produce oestrogen
where is oestrogen secreted and made
made and secreted in ovaries
what is the role of oestrogen
causes lining of uterus to develop in preparation for pregnancy
what do high levels of oestrogen do?
inhibits release of FSH
stimulates release of LH
what is LH
luteinising hormone
where is LH secreted
P. Gland
what is the role of LH
stimulates the release of egg
(ovulation)
where is progesterone secreted
secreted by empty egg follicle
what is the role of progesterone
maintains lining of uterus in the second half of the cycle
inhibits release of FSH and LH
when do progesterone levels fall
when uterus lining sheds and period starts
what are the methods of hormonal conraception?
-oral contraceptives
(birth control)
-implant
-an injection
-skin patch
state the disadvantages of IVF
emotionally and physically stressful
low success rate
can lead to risky multiple births
