A single Regional Dressage Championship program organized by the United States Dressage Federation (USDF), and recognized by the United States Equestrian Federation, Inc. (USEF), will be held in each of the nine USDF.
If fertilization and/or implantation does not take place, the system is designed to menstruate (the monthly shedding of the uterine lining). In addition, the female reproductive system produces female sex hormones that maintain the reproductive cycle.
The female reproductive system contains organs and structures that promote the production, support, growth, and development of female gametes (egg cells) and a growing fetus.Sources: 1  SEER Training Modules, Introduction to the Reproductive System. Fallopian tubes-Uterine tubes which transport egg cells from the ovaries to the uterus. 2  Fertilization typically occurs in these tubes. 3  Ovaries-Female primary reproductive structures that produce gametes and sex hormones.