Biology 30 Hormone Levels during the Menstrual Cycle

Biology 30 Hormone Levels during the Menstrual Cycle How do hormone levels regulate the female menstrual cycle? Use the following experimental data to analyze hormone levels during the menstrual cycle. Analysis and Evaluation 1. Gonadotropic hormones regulate ovarian hormones. Study the feedback loop shown in Figure 7. Figure 7 Feedback loop showing the regulation of gonadotrophic and ovarian hormones. (a) Which of the four hormones (W, X, Y, and Z) are gonadotropic hormones? Identify them X and Z are gonadotropic hormones: hormone X is FSH and hormone Z is LH (b) Which of the four hormones are ovarian hormones? Identify them. W and Y are ovarian hormones: hormone Y is progesterone. hormone W is estrogen. pituitary follicle corpus luteum (c) Which of the four hormones exert negative feedback effects? W and