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.
last authored: Allyson Opoku, Feb 2011. last reviewed: Sara McNorton, Feb 2011. The female reproductive system is responsible for the processes of fertilization and birth in the female body. The main components of the system are the vagina, the cervix, the uterus, the ovaries and the fallopian tubes. The reproductive process begins once the penis enters the vagina, sending sperm up the cervix and into the uterus.