How would a woman\'s LH levels change or respond if you prevented cells in her a

Question

How would a woman's LH levels change or respond if you prevented cells in her arcuate nucleus from detecting her estrogen levels?

a. Her LH levels would gradually rise

b. Her LH levels would remain about the same

c. Her LH levels would fall

d. Her LH levels would surge, just like they would before ovulation

When during the menstrual cycle would would find high estradiol levels and low progesterone levels?

a. Menstruation

b. Late follicular phase, just before ovulation

c. Mid-luteal phase

When does positive feedback occur during the menstrual cycle?

a. Just after the onset of menstruation

b. Towards the of the follicular phase, just before ovulation

c. Just before the onset of menstruation

d. During the middle of the luteal phase to stimulate progesterone release

What internal reproductive organs would develop in a female rat pup (chromosomally XX) if you treated her with MIS during early embryonic development? Check all correct answers for full credit.

Select one or more:

a. Uterus

b. Cervix

c. Vas deferens

d. Ovaries

e. Epididymis

How would a woman's LH levels change or respond if you prevented cells in her AVPV from detecting her estrogen levels?

Select one:

a. Her LH levels would fall

b. Her LH levels would surge, just like they would before ovulation

c. Her LH levels would surge, just like they would before ovulation, but higher than usual

d. Her LH levels would remain about the same

Development of which of the following tissues in an embryo is affected by DHT levels? Check all correct options for full credit.

Select one or more:

a. Mullerian ducts

b. Gonads

c. Wolffian ducts

d. labioscrotal swellings

e. Genital tubercle

Where would you find cells that are involved in generating a person's circadian rhythms?

Select one:

a. In the paraventricular nucleus

b. In the SCN (suprachiasmatic nuclei)

c. In the arcuate nucleus

d. In the AVPV

A surge in which of the following hormones is directly responsible for triggering ovulation?

Select one:

a. Progesterone

b. FSH

c. LH

d. Inhibin

Which of the following are components of spermatogenesis? Choose all the appropriate responses for full credit.

Select one or more:

a. Mitosis

b. Expulsion of a polar body

c. Cytodifferentiation

d. Meiosis

Explanation / Answer

1. a. Her LH levels would gradually rise as arcuate nucleus shows a modulatory effect on LH surge.

2 c. During Mid-luteal phase would find high estradiol levels and low progesterone levels.The Estrogen level rises and fall twice during the menstrual cycle.Estrogen levels rise during the mid-follicular phase and then drop prec after ovulation and secondary phase of estrogen levels rise during mid luteal phase.which decreases at the end of the menses.

3.b. Towards the of the follicular phase, just before ovulation.The raise in the level of estrogen leads to positive feedback to occur on the LH cells in the pituitary. LH secretion will increases which then causes ovulation to occurs.

4.ovaries, epididymus

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