Flashcards in The mestrual Cycle Deck (14)
What is the uterine cycle?
Changes that occur in the endometrium lining of the uterus.
What is the uterine cycle responsible for?
Responsible for the thickening and the break down of the endometrium.
What are the three phases of the uterine cycle?
What is the ovarian cycle?
Changes that occur in the follicles of the ovary.
What is the ovarian cycle responsible for?
Responsible for the maturation of an ovum in one of the ovaries
What are the three phases of the ovarian cycle?
Which hormones control the ovarian cycle?
FSH and LH
Which hormones control the uterine cycle?
Oestrogen and progesterone.
Where is each hormone even in the graph produced?
HCG: the developing embryo l
Oestrogen: originally in the developing ovarian follicle,after fertilisation in the corpus luteum
Progesterone : secreted from the corpus luteum after ovulation
Describe the function of each hormone in the graph
HCG: stimulates corpus luteum to continue to produce progesterone and oestrogen
Oestrogen : prevents the development of follicles
Progesterone : prevents ovulation and menstruation
What happens to progesterone levels during pregnancy?
Progesterone levels increase to maintain the thickness and vascular natured of the endometrium. Helps to keep placenta healthy.
What will happen to oestrogen levels when woman starts to menstruate again after present pregnancy
It will decrease
How does miscarriages occur?
There is not enough progesterone produced to maintain the endometrium. The endometrium breaks down and a miscarriage happens.