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Implantation and Placental Development

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What is the average duration of a normal menstrual cycle?

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a. 14–28 days

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b. 25–32 days

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c. 28–55 days

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d. 40–50 days

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Of 2 million oocytes in the human ovary present at birth, how many are present at the onset of puberty?

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a. 200,000

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b. 300,000

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c. 400,000

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d. 500,000

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Which hormone is required for the late-stage development of antral follicles?

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a. Estradiol

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b. Androstenedione

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c. Luteinizing hormone

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d. Follicle-stimulating hormone

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Which cells of the dominant follicle are responsible for estrogen production during the follicular phase of the menstrual cycle?

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a. Theca

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b. Decidual

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c. Granulosa

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d. Endometrial

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What name is given to the process through which the corpus luteum develops from the remains of the Graafian follicle?

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a. Luteinization

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b. Thecalization

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c. Decidualization

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d. Graafian transformation

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What is the approximate peak production of ovarian progesterone during midluteal phase?

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a. 10–20 mg/day

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b. 25–50 mg/day

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c. 60–80 mg/day

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d. 75–100 mg/day

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Which of the following is the most biologically potent naturally occurring estrogen?

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a. Estriol

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b. Estrone

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c. Estetrol

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