Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 43, Problem 22RQ
Progesterone is made during the third trimester by the:
- placenta
- endometrial lining
- chorion
- corpus luteum
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This is secreted by the ovary ( follicle and corpus luteum ), causes proliferation of the endometrium . It is also responsible in developing and maintaining the female reproductive organs and secondary sexual characteristics associated with the adult female
Follicular stimulating hormone
Progesterone
Prostaglandin
Estrogen
Describe 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
Normally deterioration of the endometrium begins when:
blood levels of FSH increase
blood levels of estrogen and progesterone decrease
blood levels of estrogen and progesterone increase
the corpus luteum secretes estrogen
Chapter 43 Solutions
Biology 2e
Ch. 43 - Figure 43.8 Which of the following statements...Ch. 43 - Figure 43.15 Which of the following statements...Ch. 43 - Figure 43.17 Which of the following statements...Ch. 43 - Which form of reproduction is thought to be best...Ch. 43 - Which form of reproduction can result from damage...Ch. 43 - Which form of reproduction is useful to an animal...Ch. 43 - Genetically unique individuals are produced...Ch. 43 - External fertilization occurs in which type of...Ch. 43 - Which term applies to egg development within the...Ch. 43 - Which term applies to egg development outside the...
Ch. 43 - Sperm are produced in the______ scrotum seminal...Ch. 43 - Most of the bulk of semen is made by the...Ch. 43 - Which of the following cells in spermatogenesis is...Ch. 43 - Which female organ has the same embryonic origin...Ch. 43 - Which female organ has an endometrial lining that...Ch. 43 - How many eggs are produced as a result of one...Ch. 43 - Which hormone causes Leydig cells to make...Ch. 43 - Which hormone causes FSH and LH to be released?...Ch. 43 - Which hormone signals ovulation? FSH LH inhibin...Ch. 43 - Which hormone causes the regrowth of the...Ch. 43 - Nutrient and waste requirements for the developing...Ch. 43 - Progesterone is made during the third trimester by...Ch. 43 - Which contraceptive method is 100 percent...Ch. 43 - Which type of short term contraceptive method is...Ch. 43 - Which hormone is primarily responsible for The...Ch. 43 - Major organs begin to develop during which part of...Ch. 43 - Which of the following is false? The endoderm,...Ch. 43 - During cleavage, the mass of cells: increases...Ch. 43 - Which of the following gives rise to the skin...Ch. 43 - The ribs form from the ___________ . notochord...Ch. 43 - Why is sexual reproduction useful if only half the...Ch. 43 - What determines which sex will result in offspring...Ch. 43 - What are the advantages and disadvantages of...Ch. 43 - Why would paired external fertilization be...Ch. 43 - Describe the phases of the human sexual response.Ch. 43 - Compare spermatogenesis and oogenesis as to timing...Ch. 43 - If male reproductive pathways are not cyclical,...Ch. 43 - Describe the events in the ovarian cycle leading...Ch. 43 - Describe the major developments during each...Ch. 43 - Describe the stages of labor.Ch. 43 - What do you think would happen if multiple sperm...Ch. 43 - Why do mammalian eggs have a small concentration...Ch. 43 - Explain how the different germ layers give rise to...Ch. 43 - Explain the role of axis formation in development.
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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.arrow_forwardMatch each hormone with its effect. oxytocin a. growth of facial hair testosterone b. uterus contracts LH c. LH, FSH are released GnRH d. surge causes ovulation FSH e. follicle develops HCG f. milk is produced prolactin g. corpus luteum is maintainedarrow_forwardOutline the roles of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in the ovarian cycle of a human female.arrow_forward
- During the menstrual cycle, a midcycle surge of _____ triggers ovulation. a. estrogen b. progesterone c. LH d. FSHarrow_forwardFertility specialists may advise a couple who wish to conceive a child to use an alkaline (basic) douche immediately before intercourse. What might the reasoning behind this advice be?arrow_forwardDescribe the function of each of the following hormones in the uterine and ovarian cycles: GnRH, FSH, LH, estrogens, progesterone, and inhibin.arrow_forward
- Label the structures and hormones involved in lactation. Posterior pituitary Prolactin and oxytocin Spinal cord Prolactin Hypothalamus Mammary gland Anterior pituitary Oxytocinarrow_forwardwhich hormone is directly responsible for stimulating spermatogenesis? LH, FSH, testosterone, GnRH, or androgen binding protein.arrow_forwardThe most significant source of serum testosterone in the normal woman is: liver production from ovarian estradiol peripheral production from adrenal DHEA ovarian granulose cell production luteal cell productionarrow_forward
- Activity 2.2: The Hormonal Actions During Menstrual Cycle Directions: Complete the flow chart by choosing the correct terms inside the box. HYPOTHALAMUS Negative feedback occurs throughout the cycle Positive feedback ( day 12-14) 2. Stimulates follicular development in ovaries to produce 4, Surge causes Stimulates 5. ( from developing follicles) Result in the formation of a 9. secretion Estrogen and 7, 10.arrow_forwardIn menstruation, the functional layer is shed from the endometrium. Explain the hormonal and physical factors responsible for this shedding. (See Figure 25.19.)arrow_forwardDiscuss the hypothalamic-pitiutary-ovarian and the physiologic basis for the interplay of the various hormones involved in the axis.arrow_forward
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