During pregnancy, FSH and LH levels should be: High-progesterone stimulates the release of FSH and LH ⒸHigh All hormones are high during pregnancy # Low the high levels of estrogen and progesterone exert a negative feedback effect on LH and FSH O Low the pituitary stops functioning during pregnancy
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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.Which of the following is the false statement? O All pituitary hormones, including thyroid hormones, are affected by loss of reproductive function O FDA does not approve use of individually compounded bioidentical hormones for treatment of perimenopausal symptoms due to lack of standardization and demonstrated effectiveness After menopause, the vagina becomes more susceptible to infection due to decreases in lactobacilli O The risk of coronary heart disease increases in postmenopausal women and becomes the number one overall killer of womenDuring pregnancy, FSH and LH levels should be: High-progesterone stimulates the release of FSH and LH High All hormones are high during pregnancy. Low the high levels of estrogen and progesterone exert a negative feedback effect on LH and FSH Low the pituitary stops functioning during pregnancy
- Which pituitary hormone might contribute to multiple births and why? Which pituitary hormone might contribute to multiple births and why? Luteinizing hormone stimulates ovulation. Ovulation of more than one egg cell per cycle can result in the formation of multiple embryos. Follicle-stimulating hormone stimulates follicle maturation allowing more than one egg cell to develop during one cycle. Oxytocin promotes uterine contractions necessary to deliver multiple babies. Prolactin stimulates milk production to support multiple births.A woman is in labor. The size of the fetus combined with the contractions of the uterine muscular layer stretches the uterine wall, stimulating stretch receptors in the cervix. Signals from these receptors are conducted through nerves to the hypothalamus/posterior pituitary. The hypothalamus/posterior pituitary releases oxytocin. The oxytocin travels through the blood and stimulates the smooth muscle layer of the uterus. Oxytocin has two effects on the uterine smooth muscle:1. Itdirectlystimulatesthesmoothmuscletocontractmorefrequentlyandmoreforcefully.2. Itcausestheuterinewalltoreleaseprostaglandins,whichincreasethefrequencyandforceofthe contractions even more.These effects push the fetus more forcefully into the cervix, stimulating the stretch receptors further. The receptors send additional impulses to the hypothalamus/posterior pituitary. The increased activation of the hypothalamus/posterior pituitary stimulates release of additional oxytocin, which further stimulates the uterus.…Which of the following is/are true with regards to hormones in the reproductive tract? Estrogen secretion is stimulated exclusively by LH. Progesterone is secreted by ovarian follicles & the corpus luteum. Progesterone secretion is stimulated exclusively by FSH. Estrogen is secreted by ovarian follicles & the corpus luteum. All of the above
- Which of the following is not appropriately associated with its source? ICSH-anterior pituitary O FSH-anterior pituitary testosterone-spermatogonia GnRh-hypothalamus all of the above are appropriately associated with their sourcesIdentify 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 sideWhich of the following hormones is not matched correctly to its effect on the mother?a. peptide hormones—increased resistance to insulinb. progesterone—reduced chances of the mother having an immunereaction to the fetusc. estrogen—increased uterine blood flowd. progesterone—relaxation of smooth muscle and decrease inblood pressuree. All of these are matched correctly
- What are the main effects of gonadotropic hormones? Select all that apply. Stimulation of the formation of the ova Stimulation of the secretion of hormones from sex Stimulation of the development of secondary female sexual characteristics Stimulation sustains pregnancy Stimulation of the hormone progesteroneWhich of the following hormones is not matched correctly to itseffect on the mother?a. peptide hormones—increased resistance to insulinb. progesterone—reduced chances of the mother having animmune reaction to the fetusc. estrogen—increased uterine blood fl owd. progesterone—relaxation of smooth muscle and decrease inblood pressuree. All of these are matched correctly.Which of the following hormones controls the release of pituitary sex hormones? LH - luteinizing hormone FSH - follicle stimulating hormone GNRH - gonadotropin releasing hormone Testosterone