EBK BIOLOGY
EBK BIOLOGY
4th Edition
ISBN: 8220102797376
Author: BROOKER
Publisher: YUZU
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Chapter 51, Problem 8TY

During the human ovarian cycle, ovulation is stimulated by

  1. a. a decrease in FSH secretion.
  2. b. an increase in progesterone secretion.
  3. c. an increase in LH secretion.
  4. d. the presence of semen in the vagina.
  5. e. a decrease in estradiol concentration in the bloodstream.
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Menopause is characterized primarily bya. primary ovarian failure.b. loss of estrogen secretion from the ovary due to a decrease in LH.c. loss of estrogen secretion from the ovary due to a decrease in FSH.d. a decrease in FSH and LH due to increased inhibin.e. a decrease in FSH and LH due to a decrease in GnRH pulses.
Which of the following hormones exogenously-administered as drugs is most likely to decrease ovarian production of secondary oocytes and testicular production of secondary spermatocytes.                                     A. Estradiol.                                                                                                                                                           B. Progesterone.                                                                                                                                                          C. prolactin.                                                                                                                                                           D. testosterone.                                                                                                                                                      E. TRH
During the secretory phase of the menstrual cycle, endometrial glandssecretea. hormones that increase the likelihood of pregnancy.b. nutritive substances that sustain an embryo during the first 2 weeksof development.c. hormones that prevent ovulation.d. waste products into the lumen of the uterus.e. both a and c.

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