Phases Of The Menstrual Cycle Flashcards
What happens during the menstrual phase?
Shedding of the endometrium occurs in the form of uterine bleeding.
How long does the menstrual phase last?
Days 1 to 5 of cycle
Proliferation - define
Follicular
How long does the proliferation last?
Day 5 to ovulation
What happens to the endometrium during the proliferation phase?
Endometrium is restored under primary hormone influence of estrogen.
During what phase is the follicle stimulating hormone secreted?
Proliferation phase.
What endocrine gland secretes FSH?
Anterior pituitary gland.
During the proliferation phase, what happens to the follicle and what does it secrete?
A preovulatory surge of luteinizing hormone converts the follicle to a corpus luteum, which produces progesterone.
Secretory - define
Luteal
How long does the secretory phase last?
Ovulation to approximately 3 days before menstrual cycle.
During the the secretory phase, which two hormones are affected an what happens to them?
Estrogen levels level off and progesterone levels increase.
How long does the ischemic phase last?
Approximately 3 days before menstruation to onset of menstruation.
What happens if fertilization doesn’t occur during the ischemic phase?
The corpus luteum degenerates.
What two hormones are affected during the ischemic phase and what happens to them?
Estrogen and progesterone leveled drop off.
What happens to the endometrium during the ischemic phase?
Endometrium becomes blood starved which leads to the onset of menstruation.
