Module 3S2 Chemistry of Reproduction

Introduction

Hormone regulation, of the male and female reproductive system, causes the maturation of our gender development. Both male and female hormones are found in each gender, but in very different amounts. It is estimated that during our reproductive years men produce between 6-8 mg of testosterone daily but women only produce about 0.5 mg daily. Male hormones are produced at a more

steady rate and do not fluctuate as cyclically as female hormones do, specifically when considering the menstrual cycle. Sex hormone distribution is controlled by negative feedback systems that maintain the appropriate amounts of hormones for sexual maturation and function. As both men and women go through the aging process, there is a reduction in the quantities of sex hormones that are produced. 

In this section of Module 3, you will learn how hormones regulate both the male and female reproductive systems. You will study how the hormone feedback system in males initiates puberty, maintains a constant level of function through the reproductive years, and causes change in the aging process. In the case of females, you will examine the detailed hormonal control of the monthly menstrual cycle, the consequences to the cycle whether or not fertilization has occurred, and the hormonal action that results in menopause.