4. The figure to the right shows normal plasma hormone concentrations during the

Question

4. The figure to the right shows normal plasma hormone concentrations during the female menstrual cycle. 800 600 400 200 What is the peak estrogen and progesterone concentrations? When do they occur? (1pt) Is there a difference between the estrogen production on day 12 and day 20? Explain(lpts) LH 2600 400 200 Where is the progesterone coming from on dayo FSH 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 20? (lpts) Days of female sexual cycle d.What are LH and FSH and what causes them to spike around day 13? (3pts) What days during the cycle are the chances of pregnancy most likely why?(1pt) What changes would you expect to see in these hormone levels during the next 28 days after a successful pregnancy occurred in this cycle? (2pts)

Explanation / Answer

Gradual increasing amount of estrogens stimulate the follicular phase, discharges of blood (menses) flow stop, and the lining of the uterus thickens. the uterine lining changes to prepare for potential implantation under the influence of progesterone, for an embryo to establish a pregnancy.

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