repro 4 Flashcards
Androgens
are anabolic hormones and promote protien sythesis
Androgens influence
primary sex characteristics: internal sexual organs and external genetals, which we learned are differentiated to male during embryonic development and effects growth after puberty
secondary sex charcteristics: body shape, facial and body hair growth, thcking of vocal chords and sex drive
female reproduction
follicle
collection of the oocyte
atresia
death of the pre mordial follicles
500k at birth
180k before puberty
FSH impact on follicle
brings it from primary to secondary to tertiary
menstrual cycle
monthly cycle
ovarian cycle:
1. follicular phase - follicle growth
2. ovulation - oocyte leaves follicle
3. Luteal phase - cells left behind form corpus luteum (produces proestrogen)
uterian cycle:
1.
2.
3.
follicular and luteal phases
follicle phase:
-bleeding start, follicles develop,
-one follicle becomes dominant
-dominant follicle developes
Luteal phase:
-ovulation occurs
-corpus luteal functions
-then dies if not fertilized
Proliferative phase
latter oart of the folliclualr phase, the uterus adds new cells to the endometrium layer in anticipation of pregnancy (PRIMARY driven by estrogen)
secretory phase (aka Luteal phase)
after ovulation hormones from corpus luteum covert thickened endometrium into a secretory structure (PRIMARY driven by proestrogen)
hormones involved in mestrual cycle
GnRH from hypothalamus - corpus luteum degenertes meas less feedback on hypothalamus causing it to relase more GnRH which means more LH and FSH
Estrogen and Proestrogen, inhibin, and AMH from ovary
hormones during 1st day of menstruation
FSH is released, several tertiary follicles mature
-granulosa cells (activated by FSH) produces hormones
-thecal cells (activated by LH) produces hormones
granulosa cells secrete AMH which prevent more follicle recruitment. also secretes androgens which is converted to estrogens
Thecal cells secrete
