The images below illustrate the male and female body parts that are involved in sexual activity and reproduction. These body parts are also commonly referred to as genitals, reproductive organs, or sex organs. The male body has sexual organs both inside and outside the body. The internal organs include the epididymis, vas deferens, seminal vesicles, and prostate, and the external organs include the penis and testicles.
Male Reproductive System
Sex organ - Wikipedia
A sex organ or reproductive organ is any part of an animal's body that is involved in sexual reproduction. The reproductive organs together constitute the reproductive system. The testis in the male, and the ovary in the female, are called the primary sex organs. Mosses , ferns , and some similar plants have gametangia for reproductive organs, which are part of the gametophyte. The cones and pollen are not themselves sexual organs. The Latin term genitalia , sometimes anglicized as genitals , is used to describe the externally visible sex organs: in male mammals, the penis and scrotum ; and in female mammals, the vulva and its organs.
Human reproductive system
The female reproductive system is made up of the internal and external sex organs that function in reproduction of new offspring. In the human the female reproductive system is immature at birth and develops to maturity at puberty to be able to produce gametes , and to carry a foetus to full term. The internal sex organs are the uterus , Fallopian tubes , and ovaries. The uterus or womb accommodates the embryo which develops into the foetus.
The testes are the primary male sexual organs in that they make sperm and produce testosterone. The sperm is the male sex cell, or gamete, and each testicle produces more than 4 million new sperm per hour [source: Angier ]. Testosterone is the hormone that causes male secondary sex characteristics such as facial and pubic hair, thickened vocal cords and developed muscles.