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- Figure 43.15 Which of the following statements about hormone regulation of the female reproductive cycle is false? LH and FSH are produced in the pituitary, and estradiol and progesterone are produced in the ovaries. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken. Both progesterone and estradiol are produced by the follicles. Secretion of GnRH by the hypothalamus is inhibited by low levels of estradiol but stimulated by high levels of estradiol.Predict the effect on the endometrium of maintaining high progesteronelevels in the blood, including periods of time during which estrogennormally increases following menstruationDescribe the hormonal control of spermatogenesis in terms of the hypothalamic-pituitarygonadal axis (HPG axis) – in this case, the hypothalamic-pituitary-testes axisList the anabolic and androgenic effects of testosterone
- Discuss the critical effects of estrogen and progesterone during pregnancy.Which of these is not true about the physiologic effects of estrogen? Group of answer choices Raising of uterine threshold to contractile stimuli Stimulation of prolactin secretion Blocking the action of prolactin on the breast Decreasing LDL cholesterol Anti-osteoporosisWhich of the following is true regarding LH signaling in men? O Stimulates leydig cells to produce testosterone O Stimulates the sertoli cells to increase spermatogenesis O Stimulates the leydig cells to produce inhibin OStimulates the granulosa cells to increase spermatogenesis Stimulates the theca cells to produce testosterone
- Identify 1 effect of the hormone Inhibin in pregnancy. Select one: O a. This inhibits the secretion of follicle stimulating hormaone by the anterior pituitary gland - preventing ovulation O b. It is know to mediate the haemodynamic changes that occur during pregnancy such as; increased cardiac output, increased renal flow, increased arterial compliance 0 с. This influences the transamniotic waste transfer from the mother to the fetus sideState the production sites and pregnancy-related functions of human chorionic gonadotropin, progesterone, estrogens, and relaxin.In males, stimulates the Leydig cells to produce Progesterone; testosterone Luteinizing hormone (LH); testosterone Estrogen; sperm O Follicle Stimulating Hormone (FSH); inhibin