Reproductive Physio Flashcards
To help control the menstrual cycle, what hormone is released from the hypothalamus?
Gonadotropin releasing hormone
To help control menstrual cycle, what is released from anterior pituitary?
LH and FSH
What is the primary sex hormone produced by the ovaries?
Estradiol
also some progesterone
How long is a standard cycle?
28 days
what is day 1?
first day of menses
when is LH surge?
mid cycle, day 14
when does ovulation occur?
after LH surge, a couple days after
In women do the luteal and follicular phase vary in length?
Luteal phase is always same
follicular phase varies
What are the phases of the Ovarian cycle?
Uterine cycle?
Ovarian: follicular and luteal phase
Uterine: proliferative and secretory phase
Describe the follicular phase:
start, end, hormone
Start: 1st day of menses
End: LH surge
hormone: estradiol from follicle
Describe the luteal phase:
start, end, hormone
Start: LH surge
End: onset of menses
hormone: progesterone from the corpus luteum
What is the primary hormone produced during the follicular phase?
Estradiol
Primary hormone in luteal phase?
Progesterone
If we don’t get ovulation, what happens to the hormones?
Estradiol is sticking around
If you don’t have the withdrawal of progesterone, what will happen?
you will outgrow your blood supply and still bleed but it will be irregular
What causes menses to occur?
drop in progesterone
Describe the proliferative phase:
start, end, hormone
Start: end of menses
End: ovulation
hormone: estradiol
Describe the secretory phase:
start, end, hormone
Start: LH surge
End: onset of menses
hormone: progesterone
Which hormone supports endometrial elongation and thickening?
Estradiol
Withdraw of which hormone causes sloughing of the endometrium?
progesterone
What does the presence of estradiol do to the cervical mucus?
large quantities of thin, clear, watery mucus
what is the purpose of cervical mucus when estradiol is present?
helps the sperm move faster
What does the presence of progesterone do to the cervical mucus?
mucus production decreases