PSYC 333 Chapter Notes - Chapter 7: Combined Oral Contraceptive Pill, Contraceptive Sponge, Vaginal Ring
12 Mar 2014
School
Department
Course
Professor
Document Summary
Page 164-197, 334 pages page 1 of 13. Chapter 7: contraception: contraception: methods intended to prevent or reduce the likelihood of pregnancy, by interfering with ovulation or fertilization. Some, but not all, also protect against stis: abstinence is a form of birth control. They are particularly useful for preventing teen pregnancies: type of contraceptive used affected by woman"s age and relationship status. Quickstart with taking pill first day of prescription, regardless of day of her menstrual cycle: the pill works by preventing ovulation, since the high levels of estrogen inhibit fsh production needed for ovulation. The high progesterone also inhibits lh: progestin additionally thickens cervical mucus to prevent sperm migration, and changes uterine lining to decrease chance of implantation. When the placebo or no pill is used, the uterine lining disintegrates and causes withdrawal menstruation; the flow is typically reduced due to progestin inhibition of endometrium thickening.
