Human Reproductive Considerations Flashcards
6 events of menstrual cycle
- menstruation
- follicle growth
- ovulation
- CL formation and function
- endometrial growth and secretion
- luteolysis
What are the key differences from estrous cycles (3)
- Monthly sloughing of endometrium in absence of pregnancy
- No defined period of sexual receptivity
- Longer follicle phase in menstrual cycle
2 ovarian events during menstrual cycle
- Follicular phase
2. Luteal phase
Follicular phase starts on day __ of menses and ends at __
- day 1
- ovulation
Menstrual follicular phase is __than that in estrous cycles
longer
How long is the menstrual follicular phase?
14 days approx
The follicular phase is more __ between individuals than the luteal phase
variable
Which species’ CL secretes more estradiol than other species?
primate
Luteolysis occurs in and concludes the __ phase
luteal
Luteolysis is
the endometrial sloughing which initiates next menstrual cycle
What initiates luteolysis?
drop in progesterone
2 uterine events during menstrual cycle
- Proliferative phase
2. Secretory phase
Proliferative phase time coincides with __ __
Follicular phase
During the proliferative phase, there is an __ in endometrial __ in response to __
Increase in endometrial thickness in response to estradiol
Endometrial cells divide by __
mitosis
The secretory phase coincides with __ __
luteal phase
During the secretory phase, there are endometrial changes in response to __
progesterone
In the secretory phase, what are the endometrial changes in response to progesterone?
- increased thickness
2. Acquisition of secretory capacity
3 hormonal fluctuations during menstrual cycle
- Dramatic changes in estradiol and progesterone
- High estradiol
- High progesterone
Dramatic changes in estradiol and progesterone during menstrual cycle have __ __ on behavior
physiological effects on behavior
What is the behavioral effect of high estradiol?
high self-esteem
desire for intimacy
increased cognition
Why do these effects of high estradiol happen?
increase in synaptic junctions in hippocampus
What are the behavioral effects of high progesterone?
Premenstrual syndrome (PMS)
What are the hormonal symptoms ofmenstrual cycle?
anxiety or tension
depression
irritability
changes in appetite