Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 51, Problem 8TY
During the human ovarian cycle, ovulation is stimulated by
- a. a decrease in FSH secretion.
- b. an increase in progesterone secretion.
- c. an increase in LH secretion.
- d. the presence of semen in the vagina.
- e. a decrease in estradiol concentration in the bloodstream.
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Chapter 51 Solutions
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- Which of the following statements correctly describes the role of androgens in the male reproductive system? Select one: a. Increased levels of testosterone feedbacks negatively to the anterior pituitary and hypothalamus. b. GnRH is released by the anterior pituitary and stimulates the release of FSH and LH. c. Increased levels of inhibin released by the interstitial cells results in lower levels of FSH and testosterone. d. LH stimulates the Sertoli cells to produce inhibin and to start spermatogenesis.arrow_forwardWhich of the following statements is NOT about follicle stimulating hormone (FSH) in the male reproductive system? Select one: a. It increases the production of inhibin. b. It is suppressed by increased levels of testosterone and inhibin. c. It is stimulated by GnRH and LH. d. It stimulates the seminiferous tubules to produce sperm.arrow_forwardAfter fertilization, the successful development of a mature, full-termfetus depends ona. the release of human chorionic gonadotropin (hCG) by the developing placenta.b. the production of estrogen and progesterone by the placental tissues.c. maintenance of the corpus luteum for all 9 months.d. Both a and b are correct.e. All of these are correct.arrow_forward
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