The parts of the female reproductive system are gametes, which are a mature haploid germ cell, male or female, capable of uniting with another of the opposite sex in several reproductions to form a zygote. The egg is a person possessing a specified quantity. The egg cell is a mature female reproductive cell, especially that of a human or other animal, that divides to give rise to an embryo, usually only after fertilization by a male cell. The vaginalis is a muscular tube leading from the external genitalia to the cervix in women and most female mammals. The labia are the inner and outer folds of the vulva, on either side of the vagina. The clitoris is a small, sensitive, erectile part of the female genitalia located at the anterior end of the vulva. The urethra is a channel through which urine is passed out of the body from the bladder and which, in male vertebrates, also carries sperm. The hymen is a membrane that partially closes the opening of the vagina and whose presence is traditionally considered a mark of virginity. The uterus is the organ located in the lower body of a woman or female mammal where offspring are conceived and in which they gestate before birth; the uterus. The cervix is ​​a narrow passage forming the lower end of the uterus. The fallopian tube is part of a set of tubes along which eggs travel from the ovaries to the uterus. The ovary is a female reproductive organ in which ova or eggs are produced, occurring in humans and other vertebrates in pairs. Estrogen is a group of steroid hormones that promote the development and maintenance of the body's feminine characteristics. Progesterone is a steroid hormone released by the corpus luteum that stimulates the uterus to prepare for pregnancy. The parts of the male reproductive system are the testicles, which are an organ that produces sperm... middle of paper... and body fluid. Sperm is made up of 3 main parts: the head, the middle part and the tail. The length is 10 microns. The prostate is a gland the size of a walnut. The urethra is a narrow fibromuscular tube that conducts urine and semen from the bladder and ejaculatory ducts. The penis is a cylinder-shaped male external and sexual organ. The glans is the sensitive bulbous structure located at the distal end of the penis. The seminiferous tubules are found inside the testes. The germinal epithelial cell which forms three layers also constitutes it. Seminal vesicles have a paired, tightly coiled tubular structure. It is a hollow and extensible muscular organ. Located above the prostate and behind the bladder. Function Parts of the female reproductive system function. The ovum/ovum must carry all of the chromosomes contributed by the female. Creates the right environment to allow fertilization by sperm .