combination birth control pills contain estrogen and progestin. A typical pill packet contains 3 weeks of active hormones and 1 week of placebo pills. During the week of placebo pills, menstruation occurs. Use your knowledge of the hormonol control of the female reproductive system to: 1) Explain how the pills alter the feedback pathways of FSH and LH to prevent pregnancy. 2) Explain why menstruation occurs during the placebo week

combination birth control pills contain estrogen and progestin. A typical pill packet contains 3 weeks of active hormones and 1 week of placebo pills. During the week of placebo pills, menstruation occurs. Use your knowledge of the hormonol control of the female reproductive system to: 1) Explain how the pills alter the feedback pathways of FSH and LH to prevent pregnancy. 2) Explain why menstruation occurs during the placebo week

Comprehensive Medical Terminology

4th Edition

ISBN:9781133478850

Author:Jones

Publisher:Jones

Chapter17: The Female Reproductive System

Section: Chapter Questions

Problem H6CRE

See similar textbooks

Similar questions

List three common causes of persistent nipple pain.
Fertility 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?
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.
Figure 43.17 Which of the following statements about the menstrual cycle is false? Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Menstruation occurs just after LH and FSH levels peak. Menstruation occurs after progesterone levels drop. Estrogen levels rise before ovulation, while progesterone levels rise after.
B) The ovarian activities of a female change dramatically as she matures from a pre-pubescent girl to post- menopausal women. Define all of the ovarian activities of the female reproductive system including: menarche, menstrual cycle, pregnancy, labor, childbirth, and menopause. Be sure to include the following: the approximate age of menarche, the approximate duration of a single menstrual cycle, the site of conception, the average length of a pregnancy, a description of the three (3) physiological stages of labor, and the approximate age of menopause. Define the term amenorrhea. Identify the term used to describe the period in which symptoms of approaching menopause occur.
A patient presents requesting hormonal contraception . She has been researching her options on the Web and has become confused by the large variety of OC pills available , including monophasic, multiphasic , and progesterone only . She asks how the pill prevents pregnancy and why the variety of preparations . Which of the following is the primary mechanism by which OCs prevent pregnancy ? Increasing cervical mucus viscosity Inhibiting serum follicle stimulating hormone (FSH) levels Inducing lymphocytic endometritis Inhibiting serum luteinizing hormone (LH ) levels
Which of the following mechanisms best explains the contraceptive effect of birth control pills that contain both synthetic estrogen and progestin? Inhibition of ovulation Impairment of implantation hyperplastic changes of the endometrium Production of uterine secretions that are toxic to developing embryos Impairment of sperm transport due to uterotubal obstruction Direct inhibition of oocyte maturation
Hormonal contraceptives can be cyclic or non-cyclic. Non-cyclic hormonal contraceptives provide a constant level of hormones everyday for months or years. Examples of non-cyclic hormonal contraceptives include the hormonal IUD (Mirena, Skyla or Lilletta brandnames), the hormonal implant (Norplant or Implanon), and the hormonal injection (Depo-Provera). Cyclic contraceptives provide hormones for about 3 weeks, then one week of no hormones. Examples of these include various types of birth control pills containing 3 weeks of hormonal pills then one week of placebo (sugar pills); and the vaginal ring (NuvaRing, which is kept in for 3 weeks then removed for one week.) Many females using hormonal contraceptives in general tend to have lighter and shorter menstrual periods after a few months, but those using non-cyclic methods often do not have any menstruation at all. Why might this be? Write a paragraph describing a potential mechanism.
Identify 3 effects of progesterone on pregnancy. Select one or more: O a. This causes the uterus to remain contracted after delivery to reduce blood loss from the placental site O b. This is produced when the ovarian follicle that encloses the developing egg forms a structure called the corpus luteum O c. This decreases bladder tone leading to an increased risk of urinary infection O d. This prepares the body for pregnancy. It acts as an appetite stimulant Identify 1 effect of the hormone vasopressin in pregnancy. Select one: O a. This has an important compensatory mechanism for restoring blood pressure in hypovolaemic shock such as that which occurs during haemorrhage O b. Promotes the maintenance of the corpus luteum at the beginning of pregnancy O C. Involved in thickening of the endometrium and other aspects of regulating the menstrual cycle
Conditions that cause the fallopian tubes to be narrower than normal may result in: Implantation of a fertilized ovum within the tube. More rapid propulsion of the ovum through the tube. Increased likelihood of pregnancy during each cycle. Excessive cramping and bleeding during menstruation .
Lactational Amenorrhea is a method of contraception Justify. What is the maximum effectiveness of this method in terms of period/duration?
1)Compare and contrast hypovolemia and negative water balance including definition, causes, and possible outcomes. 2)Trace the path of a sperm cell from the site of its maturation to the site where it leaves the male body. Include descriptions of fluids added along that path. 3) Chronicle the events of the female sexual cycle including hormonal control with particular emphasis on the overlap and regulation of the ovarian and menstrual cycles. What are differences if fertilization does not take place vs. when a pregnancy intervenes?