The figure is a schematic diagram of the female reproductive system. Please answer according to the figure: (1) The structure represented by the serial number ③ is _ _ _ _ _ _ _ _ _, and its main function is to produce _ _ _ _ _ _ _ _ and secrete female. Female reproductive system mainly includes ③ ovary, ② fallopian tube, ① uterus, ④ vagina, etc. ② The function of fallopian tube is to transport eggs, and it is also the place for fertilization; ① Uterus is the place where embryos develop; The vagina is the passage for sperm to enter the female body and the baby is born, and the placenta is the place where the fetus and the mother exchange materials.

Therefore, the answer is: (1) ovary; Egg cell; （2）②； Fallopian tube; （3）①； (4) vagina