Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 42, Problem 6RQ
Summary Introduction
To describe:
The interaction among hormones secreted by the pituitary gland and the ovaries produce the menstrual cycle.
Introduction:
The pituitary gland is the small, pea size gland found at the base of the brain. It produces many hormones such as growth hormone (GH), luteinizing hormone (LH), follicle-stimulating hormone (FSH), prolactin, and thyroid-stimulating hormones (TSH)). The ovaries are the primary sex organ in the human females. The ovaries secrete two sex hormones, estrogen and progesterone. LH, FSH, estrogen and progesterone interacts to produce a menstrual cycle.
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Chapter 42 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 42.1 - To attract a mate, rhinos urinate. raise their...Ch. 42.1 - Prob. 1CYLCh. 42.1 - Prob. 1TCCh. 42.1 - Prob. 2CYLCh. 42.1 - Prob. 2TCCh. 42.1 - Prob. 3CYLCh. 42.2 - Mammalian sperm dont live very long after...Ch. 42.2 - describe the human male and female reproductive...Ch. 42.2 - Prob. 1HYEWCh. 42.2 - Why would injections of testosterone suppress...
Ch. 42.2 - explain how hormonal interactons control...Ch. 42.2 - describe spermatogenesis and oogenesis, the...Ch. 42.3 - Whether using artificial insemination or natures...Ch. 42.3 - In 2015. the British Parliament voted to approve...Ch. 42.3 - describe the principal methods of contraception,...Ch. 42.3 - Envision yourself as a physician whose patients...Ch. 42.3 - Prob. 2CTCh. 42 - Prob. 1ACCh. 42 - Reproduction by a single animal, without the need...Ch. 42 - In humans, sperm are produced in the a....Ch. 42 - Describe the advantages and disadvantages of...Ch. 42 - In mammals, the male gonad is called...Ch. 42 - In humans, fertilization usually occurs in the a....Ch. 42 - Prob. 3FIBCh. 42 - Prob. 3MCCh. 42 - Prob. 3RQCh. 42 - Prob. 4FIBCh. 42 - Prob. 4MCCh. 42 - List the structures, in order, through which a...Ch. 42 - Prob. 5FIBCh. 42 - Prob. 5MCCh. 42 - Name the three accessory glands of the male...Ch. 42 - Oocytes develop in a multicellular structure, the...Ch. 42 - Prob. 6RQCh. 42 - Prob. 7RQ
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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_forwardOutline the roles of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in the ovarian cycle of a human female.arrow_forwardList four events that are triggered by the surge of LH at the midpoint of the menstrual cycle.arrow_forward
- Which hormones influence the menstrual and ovarian cycles?arrow_forwardWhat are the organizing effects of sex hormones? Compare the negative feedback loops in the male reproductive system with those of the female’s reproductive cycle. Describe an example of positive feedback involving estrogen that leads to ovulation. What are the hormonal changes during the luteal phase of the menstrual cycle?arrow_forwardDescribe the way in which the female hormones GnRH, FSH, LH, and oestrogen interact during the menstrual cycle to induce the ovulation and formation of the corpus luteum.arrow_forward
- Describe in general terms the events that take place in each phase of the menstrual cycle (e.g., flow phase, follicular phase, ovulation, luteal phase).arrow_forwardThe release of FSH and LH from gonadotropes in the anterior pituitary is separately controlled by the same hypothalamic releasing hormone, GNRH. How is it possible to organize their secretion during the menstrual cycle?arrow_forward1a) State the organ of origin of the following hormones and the function for: GnRH, FSH, LH, Estrogen, and Progesterone. 1b) The menstrual cycle contains both positive and negative feedback loops. Explain how. Please frame your answer using the “monitor -> control centre -> effector” scheme.arrow_forward
- 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 testosteronearrow_forwardDescribe 4 factions of progesterone during the menstrual cycle.arrow_forwardDescribe the effects of increased estrogen secretionduring the menstrual cycle.arrow_forward
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