Unit 8 Female Reproductive Function Flashcards
What are the two main phases of the ovarian cycle?
a) Proliferative and secretory
b) Menstrual and ovulatory
c) FSH and LH
d) Follicular and luteal
d) Follicular and luteal
Explanation: The follicular phase involves follicle maturation and estrogen production, while the luteal phase involves corpus luteum activity and progesterone secretion.
What event defines ovulation?
a) Rise in FSH
b) LH surge triggering follicle rupture
c) Estrogen drop
d) Endometrial shedding
b) LH surge triggering follicle rupture
Explanation: A sharp rise in LH in response to high estrogen levels causes ovulation around day 14.
What is the role of granulosa cells?
a) Produce androgens
b) Respond to LH to produce progesterone
c) Convert androgens to estrogens via aromatase
d) Inhibit FSH
c) Convert androgens to estrogens via aromatase
Explanation: Under FSH stimulation, granulosa cells convert thecal cell-derived androgens into estrogens.
What does the corpus luteum primarily secrete?
a) Progesterone
b) GnRH
c) Estrogen
d) Inhibin only
a) Progesterone
Explanation: The corpus luteum forms after ovulation and secretes progesterone to maintain the endometrium for potential implantation.
During which phase is the endometrium most prepared for implantation?
a) Menstrual
b) Follicular
c) Ovulatory
d) Luteal
d) Luteal
Explanation: The luteal phase is dominated by progesterone, which thickens and maintains the endometrium to support implantation.