The human species could not survive without functional male and female reproductive systems. The Reproductive System play essential roles in the development of the structural and functional differences between males and females, influence human behavior, and produce offspring. However, the reproductive system, unlike other systems in the body, is not necessary for the survival of an individual human.
- Production of gametes
- Fertilization
- Development and nourishment of a new individual
- Production of sex hormones
Male Sexual Behavior and the Male Sex Act
The Female Reproductive Organs
Menopause is the cessation of menstrual cycles. Usually occurs to women 40-50 years old.
The Female Sexual Behavior and the Female Sex Act
Labor is the period during which uterine contractions occur that result in expulsion of the fetus.