The surge in LH that occurs during the middle of the ovarian cycle triggers foll

Question

The surge in LH that occurs during the middle of the ovarian cycle triggers follicle maturation. menstruation. ovulation. menopause. atresia. The principal hormone secreted by the corpus luteum is LH. FSH. progesterone. estradiol. estrogen. Menstruation is triggered by a drop in the level(s) of FSH. LH. relaxin. estrogen and progesterone. human chorionic gonadotropin. Which of the following occurs during days 6-14 of the menstrual cycle? ovulation menstruation proliferative phase secretory phase

Explanation / Answer

93. Answer: c

At the middle of the ovarian cycle approximately about day 14, the high level of estrogen causes LH to rise rapidly and fall. The spike in LH causes ovulation.

94. Answer: c

The primary function of the corpus luteum is secretion of the hormone progesterone, which is required for maintenance of normal pregnancy in mammals.

95. Answer; d

Menstruation is triggered by reduced levels of the hormones estrogen and progesterone at the end of the previous menstrual cycle.

96. Answer: c

During this time the uterus is in the proliferative phase. During this phase estrogen induces proliferation of the functional layer of the endometrium.

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