The ovaries produce the cells destined to become ova (eggs). A released oocyte moves into the oviduct (or Fallopian tube) where it may be fertilized if sperm are present. If fertilized, it completes meiosis and becomes an ovum. If an embryo results it will burrow into the lining of the uterus to complete its development. The cervix is the opening from the uterus into the vagina. The vagina is the canal for entry of the penis and exit of menstrual flow and serves as the birth canal.