Human Physiology: An Integrated Approach (7th Edition)
7th Edition
ISBN: 9780321981226
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Chapter 26, Problem 13CC
Summary Introduction
To determine: The pros and cons of using GnRH agonists as a male contraceptive.
Introduction: Male contraceptives are the methods of preventing pregnancy that solely involve male physiology. The common types of male contraception are vasectomy and condoms.
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Hight levels of progesterone promote:a). Development of the follicle b). Re-growth of the endometrium and mensesc). Thickening, vascularization and glandularization of the endometrium d). Development of the corpus luteume). GnRH pulse frequency to peak
Which of the following is NOT TRUE?
A) Menopause is marked by elevated levels of gonadotropins.
A spermatozoon can survive for more than five days in a female reproductive tract.
C) The proliferative endometrial phase is promoted by progesterone.
Synthetic estrogens act as contraceptives by preventing the ovarian luteal phase.
The hormonal basis of stress-induced amenorrhea is due to the influence of the limbic system on GNRH secretion.
What effect would a continuous supply of exogenous estrogen or progesterone have on an adult female human?
Will it:
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B) Have more frequent ovulation
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Chapter 26 Solutions
Human Physiology: An Integrated Approach (7th Edition)
Ch. 26 - Name the male and female gonads and gametes.Ch. 26 - Where in a target cell would you expect to find...Ch. 26 - Prob. 3CCCh. 26 - Which sex will a zygote become if it inherits only...Ch. 26 - If the testes are removed from an early male...Ch. 26 - The gametes in a newborn male are at what stage of...Ch. 26 - Compare the amount of DNA in the first polar body...Ch. 26 - How many gametes are formed from one primary...Ch. 26 - Prob. 9CCCh. 26 - Prob. 10CC
Ch. 26 - Prob. 11CCCh. 26 - What do Sertoli cells secrete? What do...Ch. 26 - Prob. 13CCCh. 26 - Which cells of the testes have receptors for FSH?...Ch. 26 - Prob. 15CCCh. 26 - Name the phases of the ovarian cycle and the...Ch. 26 - Prob. 17CCCh. 26 - Prob. 18CCCh. 26 - On what day of the menstrual cycle will a woman...Ch. 26 - Match each of the following items with all the...Ch. 26 - The Y chromosome contains a region for male sex...Ch. 26 - List the functions of the gonads. How do the...Ch. 26 - Define each of the following terms and describe...Ch. 26 - Trace the anatomical routes to the external...Ch. 26 - Prob. 6RQCh. 26 - Prob. 7RQCh. 26 - List and give a specific example of the various...Ch. 26 - Prob. 9RQCh. 26 - Prob. 10RQCh. 26 - Diagram the menstrual cycle, distinguishing...Ch. 26 - Prob. 12RQCh. 26 - Define and relate each of the following terms in...Ch. 26 - Compare the actions of each of the following...Ch. 26 - Prob. 15RQCh. 26 - Discuss the roles of each of the following...Ch. 26 - Prob. 17RQCh. 26 - Prob. 18RQCh. 26 - An XY individual inherits a mutation that results...Ch. 26 - Prob. 20RQCh. 26 - The following graph shows the results of an...
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Similar questions
- 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_forwardDuring the follocular phase of the ovarian cycle, what does an increase in estrogen concentrations correlate with? 1-The degradation of a follicle containing an egg(oocyte) 2-The formation of the corpus luteum 3-The maturation of a follicle containing an egg(oocyte) 4- The degradation of teh corpus luteumarrow_forward
- Women with inadequate secretion of GnRH are often treated for their infertility with drugs that mimic the action of this hormone. Can you suggest a possible reason that such treatment is often associated with multiple births?arrow_forwardwhat is a possible effect of insulin resistance on the female reproductive system? a)increase ovulation frequency b)lower than normal androgen production c)polycystic ovary syndrome d) decreased ovarian androgen relase need answer ASAP pleasearrow_forwardWhy do anabolic steroids lead to reduced sperm counts?arrow_forward
- Based on the schematic below, illustrating the control of the hypothalamus and the pituitary gland by the ovarian hormones, how would you design a hormonal female contraceptive that keeps secretion of FSH and LH low in order to prevent ovulation?arrow_forwardWhat is estrogen priming?arrow_forwardClomiphene Citrate is a fertility drug that stimulates hypothalamic secretion of Gonadotropin releasing Hormone (GnRH) in females and induces ovulation. Explain how increased GnRH with Clomiphene Citrate treatment would affect follicle maturation and ovulation in women (explain how increased GnRH would affect FSH, LH, Estrogen, and ovulation).arrow_forward
- What could be the reason why a woman only gets her period after puberty begins? A) Before puberty, high quantities of of corpus luteum are present B) Before puberty, GnRH levels may be too low. C) Before puberty, their endometrial lining is too thick.arrow_forwardIf the ovum is not fertilized, the corpus luteum regresses, and the endometrium sloughs off to result in the first day of menstrual bleeding. The latter event would be duplicated, even if fertilization occurred, if receptors for which of the following hormones were occupied by an antagonist? A) Dehydroepiandrosterone B) Estradiol C ) Estriol D) Estrone E) Progesteronearrow_forwardSelect the FALSE statement/s: A) The functional layer of the endometrium sloughs off when estrogen levels are at their lowest but progesterone levels at their highest. 1 OB) Every month, the 20 secondary follicles release 20 ova. OC) XX genotypic female exposed to high levels of androgen in utero will develop male-like exfernal genitalia OD) Both A and B OE) Both B and Carrow_forward
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