Gonad Hormones

• Testosterone


  target: general

  effects: required in sperm formation, development of genitals, maintenance of sexual traits (growth and development)
• Estrogen


  target: breasts, general

  effects: required for egg maturation and release, preparation of the uterine lining for pregnancy, genital development, growth and development
• Progesterone


  target: uterus

  effect: prepares uterine lining for pregnancy, reduces uterine contractions