Work through this lab on the birth control pil and how it worka The queationa in thie lab have been converted to multiple choice queationa in the Lab- Birth Control P quiz. Problem 1. The most common birth control pill is a low dose combination of estrogen and progestn (21 pils) and sugar pils (7 pils, no hormone). Estrogen and Progesterone are present at moderate levels in the pill and the amount of hormones in each pil is the same. Menstruation starts a day or two after taking the sugar pll. The tablets in weks 1through piher monesi thet wll prevet you rom The tablets in week 4contin moned During this wee your 1get 1. In the figures below. the top graphs show estrogen progesterone levels and the uterine response without BCP. The bottom graphs show hormone levels on BCP (remember the hormones come from the medication, not from the body) and the uterine response on BCP. Hormone pille containing estrogen and progesterone are taken from day 6 to day 25. Sugar pilla are taken from day 26 to day 5. Hormones in the pill enter the blood within hours of taking the pill. In the absence of the pili, hormone levels drop to baseline within hours Hormone Effects on the Uterine Cycle Birth Control PiI Effect on Hormone and Uterine Cycle 2. Sally has very heavy menstrual flow with painful bloating and cramps. Her doctor recommends that she take the birth control pill to decrease the amount of inron she is losing every moth and decrease the symptoms she is feeling. a. What is being shed in menstrual flow? What causes heavier menstrual flow? b. What hormone cause growth of the endometrium? What hormone causes higher vascularization of the endometrium (thicken the endometrium)? What caused heavier menstrual flow? c. Explain why pre-menstrual symptoms and menstruation is significantly lighter when she is on the pill. (Think of the hormones on the pill vs what levels Sally may be producing.) 3. The ovarian cycle (what happens in the ovary) when a woman is taking the birth control pill. Cn the top, is a graph of ovarian cycle without BCP. On the bottom is the ovarian cycle on BCP. Hormone Effects on the Ovarian Cycle Pranery follle Birth Control Pill Effect on Hormone and Ovarian Cycle O OO Odie wo FSH dieulo only primary follides 4. Does a mature folicle form while on the birth control pil Why or why not? 5. Does the LH surpe occur while on the birth contro pil? Why or why not? 8. Does ovulation oocur whie on the b rth contro pil? 7. Ooes the corpus luteum develop? Why or why not? 10. B.L forgot to take her birth control pil for 3 days and now she has an increased chance of becoming pregnant. Why does missing several pills increase the likelihood of becoming pregnant? Draw out the H-P-O axis to show how hormone levels (GnRH/FSH /Estrogen/) would change if a person misses taking the pill for several days. What happened to the follicles in her ovaries? 11. Ovarian cysts (a fluid-filled sac) can form in or on the ovaries. The most common type of ovanian cyst is a functional cyst. Functional cysts often form during the menstrual cycle. The two types are. Follicle cysts. These cysts form when the sac surrounding the mature follicle doesn't break open to release the egg. The follicle remains in the ovary keeps growing, filling with fluid. This type of cyst most often goes away in 1 to 3 months. Corpus luteum cysts. These cysts form when the sac surrounding follicle doesn't dissolve after the egg is released. Instead, the sac seals off around the corpus lutem and luid builds up inside. Most of these cysts go away after a few weeks. They can grow to almost 4 inches. They may bleed or twist the ovary and cause pain. They are rarely cancerous. Females who are on the birth control pill have a low incidence of getting ovarian cysts, why?