The follicular phase is initiated bya. secretion of follicule-stimulating hormone.b. secretion of luteinizing hormone.c. secretion of estrogen.d. Two of the above
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The follicular phase is initiated by
a. secretion of follicule-stimulating hormone.
b. secretion of luteinizing hormone.
c. secretion of estrogen.
d. Two of the above
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- The release of the oocyte from the follicle is caused bya. a decreasing level of estrogen.b. a surge in the level of follicle-stimulating hormone.c. a surge in the level of luteinizing hormone.d. progesterone released from the corpus luteumMatch the hormones to the organ that makes them or to the action they cause. Use letters more than once. A. estrogen B. follicle stimulating hormone (FSH) C. human chorionic gonadotropin (HCG) D. luteinizing hormone (LH) E. progesterone F. testosterone blastula corpus luteum Leydig's cells ovary A A v1st hormone of pituitary gland to start cycle B. B v 2nd hormone of pituitary gland halfway through cycle C.C vendometrium grows more blood vessels D.D v keeps corpus luteum E. E v stimulates sperm production, muscle growth, aggression v keeps endometrium in uterus vovulation (egg leaves ovary) tells egg to developWhich of the following are functions of luteinizing hormone? A. stimulation of production of estrogen B. thinning of the follicle membrane C. stimulation of follicle development D. formation and maintenance of corpus luteum
- Match the hormones to the organ that makes them or to the action they cause. Use letters more than once. A. estrogen B. follicle stimulating hormone (FSH) C. human chorionic gonadotropin (HCG) D. luteinizing hormone (LH) E. progesterone F. testosterone v blastula v corpus luteum Leydig's cells A. A ovary v 1st hormone of pituitary gland to start cycle В. В С.С 2nd hormone of pituitary gland halfway through cycle D. D vendometrium grows more blood vessels Е. E v keeps corpus luteum v stimulates sperm production, muscle growth, aggression F. F v keeps endometrium in uterus ovulation (egg leaves ovary) v tells egg to developThe Leydig cell is primarily characterized bya. aromatization of testosterone.b. secretion of inhibin.c. secretion of testosterone.d. expression of receptors only to FSH.e. transformation into the corpus luteum.In a female, follicle-stimulating hormone (FSH) and luteinizing hormone (LH) target the:a. uterus. c. ovaries.b. anterior pituitary gland. d. hypothalamus.
- 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.The first hormone secreted at the onset ofpuberty isa. follicle-stimulating hormone.b. interstitial cell–stimulating hormone.c. human chorionic gonadotropin.d. gonadotropin-releasing hormone.e. testosteroneTestosterone is produced in thea. interstitial cells.b. seminiferous tubules of the testes.c. anterior lobe of the pituitary gland.d. sperm cells
- Which of the following correctly describes the results of andropause? Select one: A. Lower sperm count and increased rate of testicular cancer. B. Increased estrogen levels and decrease testosterone levels. C. Decreased fertility and increased testosterone levels. D. Reduction of muscle and bone mass and lower sperm count.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 cellSertoli cells produce androgen binding protein. The purpose of this androgen binding protein is to : (select one) a. Transport testosterone to the developing germ cells b. Increase the clearance rate of testosterone c. Prevent the germs cells being exposed to toxic concentrations of testosterone d. Manufacture androgens e. Transport testosterone to the capillaries