Select the correct statement(s) regarding the female reproductive anatomy. The uterus is a hollow, fist-sized organ located between the bladder and rectum. Menstruation is when the unfertilized egg, blood, and pieces of the lining of the uterus pass out of the female body through the vagina. The ovaries produce estrogen and progesterone which are female sex hormones. Females are not born with eggs for reproduction. The eggs are produced throughout the life of the individual. The cervix is the lower portion of the uterus; where the vagina and uterus meet. Menstruation is when an egg is released from one of the two ovaries about every 28 days.