The endocrine system provides an electrochemical connection from the hypothalamus of the brain to all the organs that control the body metabolism, growth & development, and reproduction. It is important for the survival of all living things. Without a mechanism for reproduction, life would come to an end. Human reproduction is a form of sexual reproduction resulting in the conception of a child, typically involving sexual intercourse between man and woman. During intercourse, the interaction between the male and female reproductive systems results in fertilization of the woman's ovum by the...