A sex organ, or primary sexual characteristic, narrowly defined, is any of those parts of the body (which are not always bodily organs according to the strict definition) which are involved in sexual reproduction and constitute the reproductive system in an complex organism; namely:
More generally and popularly, the term sex organ refers to any part of the body involved in erotic pleasure. The larger list would certainly include the anus for either sex, the prepuce, the breasts (especially the nipples) for females, and the nipples for males.
The Latin term genitalia is used to describe the sex organs, and in the English language this term and genital area are most often used to describe the externally visible sex organs or external genitalia: in males the penis and scrotum, in females the vulva. The other parts of the sex organs are called the internal genitalia.
A gonad is a sex organ that produces gametes, specifically the testes or ovaries in humans.
Organs of sexual anatomy originate from a common anlage and differentiate into male or female sex organs. Each sexual organ in one sex has a homologous counterpart in the other one. See a list of homologues of the human reproductive system.
Anatomical terms related to sex
The following is list of anatomical terms related to sex and sexuality:
The more they can be sure of sexual monopoly, as the gorilla can, the smaller their testes; the more they live in multimale promiscuous groups, the larger their testes.
She might have mated with less sexually competent males and produced less sexually competent sons." (Miller, Geoffrey F. (1994) Evolution of the human brain through runaway sexual selection: the mind as a protean courtship device.
This genital stage significantly predicted onset of sexual interest, with 2.2% of the fl boys experiencing intercourse by age 11.
Sexuality permeates many areas of human life and culture, thereby setting humans apart from other members of the animal kingdom, in which the objective of sexuality is more often confined to reproduction.
Secondary sexual characteristics are attributes other than the sexorgans that generally distinguish one sex from the other but are not essential to reproduction, such as the larger breasts characteristic of women and the facial hair and deeper voices characteristic of men.