The contents of the birth control pill
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Human Physiology
- In the fertility awareness method of birth control, a woman gauges her monthly fertile period by monitoring changes in the consistency of her vaginal mucus. What kind of information does such a method provide about the likelihood of getting pregnant?arrow_forwardNutrient and waste requirements for the developing fetus are handled during the first few weeks by _____. a. the placenta b. diffusion through the endometrium c. the chorion d. the blastocystarrow_forwardThe onset of labor may be a result ofa. increased estrogen secretion by the placenta.b. increased glucocorticoid secretion by the fetus.c. increased secretion of oxytocin.d. stretch of the uterus.e. All of these are correctarrow_forward
- 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. TRHarrow_forwardWhen pregnancy occurs, the endometrium is maintained bya. the embryo releasing hCG.b. a decrease in levels of progesterone.c. the hypothalamus releasing GnRH.d. increasing levels of FSHarrow_forwardWhat is true of the development of the female reproductive system? A. It is regulated by the hypothalamus-pituitary-gonadal axisB. It starts with the GnRH released by the anterior pituitary glandC. FSH is needed to develop the uterus.D. The stimulus for FSH release by the hypothalamus is the GnRH release from the pituitary gland.E. None of the choicesarrow_forward
- Interstitial cell dysfunction would result in all EXCEPT: a. all of these circumstances would occur b. failure of the vas deferens to develop during gestration O c. low levels of androgen-binding protein d. low sperm counts e. elevated LH levelsarrow_forwardWhat statement best explains the role of progesterone in menstruation?a. Produces corpus luteumb. It prepares the uterus for menstruationc. It is a steroidal hormone that results in some significant endometrial changesd. Initiate this phase by the formation of the corpus luteumWhich of the following is/are NOT a function of progesterone and estrogen:a. Inhibits the production of LH and FSHb. Causes the hypothalamus to release gonadotropin releasing hormonec. Maintains the endometrium for pregnancyd. Causes the follicle to mature into a graafian folliclearrow_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
- E B A В Identify the structure that secretes the hormone involved in the development of the secondary male sex characteristics and contributes to spermatogenesis. Select one: a. D, which is the Sertoli cell b. A, which is the spermatocyte O c. C, which is the sperm cell O d. B, which is the interstitial cellarrow_forwardThe tissue presented is at what phase of menstrual cycle and affected by what ovarian hormone? a. Secretory phase; progesterone b. Secretory phase; estrogen c. Proliferation phase; estrogen d. Proliferation phase; progesterone e. Secretory; progesterone and estrogen f. Proliferation phase; progesterone and estrogenarrow_forward
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