MENSTRUAL CYCLE Flashcards
At the end of the follicular phase (just prior to ovulation), FSH-induced LH receptors are present on the cells, and with LH stimulation, modulate the secretion of progesterone.
Answer: False
Rationale: At the end of the follicular phase, the antral follicle contains oocytes that are fully grown and activation will have to wait for the ovulatory LH surge.
Ovulation heralds the transition to the follicular/ proliferative phase.
Answer: False
Rationale: Ovulation heralds the transition to the luteal phase.
The estrogen level decreases through the early luteal phase in a continuation of a process that begins just before ovulation and continues until the mid luteal phase, where it begins to rise again as a result of corpus luteum secretion.
Answer: False
Rationale: Hallmark of corpus luteum: progesterone secretion
At the end of the follicular phase (just prior to ovulation), FSH-induced LH receptors are present on the cells, and with LH stimulation, modulate the secretion of progesterone.
Answer: False
Rationale: At the end of the follicular phase, the antral follicle contains oocytes that are fully grown and activation will have to wait for the ovulatory LH surge.
After a sufficient degree of progesterone stimulation, the pituitary LH surge is triggered, which is the proximate cause of ovulation that occurs 24-36 hours later.
Answer: False
Rationale: LH surge is preceded by the estrogen peak, and after sufficient degree of estrogenic stimulation, the pituitary LH surge is triggered which is the proximate cause of the ovulation that occurs 24-36 hours later, this is the signal from the ovary that LH is already capsule overlying mature follicle, your ovulation transitioned to the luteal or secretory phase.
Estrogen levels rise precipitously after ovulation and can be used as a presumptive sign that ovulation has occurred.
TRUE
After ovulation, the proliferative endometrium undergoes a rapid secretory differentiation; well-developed subnuclear glycogen rich vacuoles appear. This correlates with a total lack of mitosis in the glands.
TRUE
Just after menstruation, the endometrium is only 1-2 mm thick and consists mainly of stratum functionale and a few glands.
Answer: False
Rationale: Just after menses: endometrium is 1-2 mm; consists of stratum basale and portion of the spongiosum.
By the 5th day of menses, the epithelial surface of the endometrium has been restored, and revascularization will be in progress.
Answer: False
Rationale: 5th day of endometrial cycle: epithelial surface of the endometrium resotration and revascularization.
Women with PCOS has elevated LH:FSH ratio
TRUE
True of GnRH pulsatile secretion
a. In the late follicular phase, there is an
increase only in the frequency of pulses.
b. During the luteal phase, however, there is a progressive lengthening of the interval between pulses as well as a decrease in the
amplitude.
c. A low GnRH pulse frequency
favors LH synthesis.
d. A high GnRH pulse frequency favors FSH
synthesis.
B
Endometrial gland becomes longer and curved.
a. Early proliferative
b. Mid Proliferative
c. Late proliferative
d. Ovulation
B
Days 8-10 of the menstrual cycle
a. Early proliferative
b. Mid Proliferative
c. Early secretory
d. Late secretory
A
Estradiol action diminishes by what day/s of menstrual cycle?
a. Day 17
b. Day 18
c. Day 19
d. Day 20-24
C
The stroma becomes edematous during what day/s of the menstrual cycle.
a. Day 17
b. Day 18
c. Day 19
d. Day 20-24
D
