Menstrual Cycle Flashcards
At which stage in the uterine cycle does the secretory phase occur?
Days 14-28
secretory phase begins after ovulation when the ruptured Graafian follicle develops into the Corpus Luteum
At what point in the menstrual cycle is a woman most fertile?
Days 9-16
What hormone is the corpus luteum responsible for producing?
progesterone
What is the primary source of progesterone in later stages of pregnancy?
the placenta
At which stage of the uterine cycle does the menstrual phase occur?
Days 1-5
What symptoms indicate that a woman is about to ovulate?
thinning of cervical mucous
increase in basal body temperature
At what stage in the uterine cycle does the proliferative phase occur?
days 5-14
Where is GnRH produced?
hypothalamus
What are the two phases of the menstrual cycle?
follicular phase
luteal phase
What are the two layers of the endometrium?
stratum functionalis
stratum basalis
What are the three phases of the uterine cycle?
proliferative, secretory and menstrual
What hormone causes repair and growth of the functional endometrial layer?
oestrogen
What are the effects of oestrogen on the endometrium of the uterus?
increased endometrial thickness
increased vascularity - spiral arteries grow into the functional endometrial layer
development of increased numbers of secretory glands
What phase of the ovarian cycle does the secretory phase of the uterine cycle correspond to?
luteal phase
What does the corpus luteum degenerate into?
corpus albicans
