Structure of human reproductive systems

Female:

Ovaries: Where eggs are produced along with oestrogen [follicles] and progesterone [corpus luteum].
Fallopian tubes: Where ovum[a] are fertilised. They contain cilia which beat rhythmically to move the egg or zygote along into the uterus.
Uterus: This is where a zygote would implant itself and develop during the gestation period [pregnant period].
Cervix: This is a powerful muscle that prevents bacteria from entering the uterus. It produces mucus and several alkaline solutions.
Vagina: The walls secret a fluid that acts as a lubricant. Its muscular walls contract during childbirth.

Male:

Penis: Contains a vast number of nerve endings which allows it to be stimulated. It also allows muscle contraction for when the sperm is released.
Testicle: This is where sperm are produced. They are kept outside of the body so that the sperm can develop under cooler conditions.
Epididymis: This is where sperm is stored. As it is coiled, the area in which the sperm can be kept increases hence a larger volume of sperm can be stored.
Vas Deferens: A tube with muscular walls that contracts to push sperm.
Prostate gland: Along with the seminal vesicle, this gland produces a liquid called semen which sperm can swim in and gain nourishment from.
Bladder: Where urine is stored.
Urethra: The muscular tube in the penis that contracts to push sperm [in semen] out of the penis.