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 urogenital apparatus consists of (a) the urinary organs for the secretion and discharge of the urine, and (b) the genital organs, which are concerned with the process of reproduction.
The remainder of the vesico-urethral portion forms the body of the bladder and part of the prostaticurethra; its apex is prolonged to the umbilicus as a narrow canal, which later is obliterated and becomes the medial umbilical ligament (urachus).
The remainder of the phallic portion is for a time tubular, and then, by the absorption of the urogenital membrane, it establishes a communication with the exterior; this opening is the primitive urogenital ostium, and it extends forward to the corona glandis.
of the clitoris passes anterosuperior to the urogenital diaphragm (between the arcuate pubic ligament and the transverse ligament of the perineum) to enter the pelvic cavity; an unpaired vein
of the penis passes anterosuperior to the urogenital diaphragm (between the arcuate pubic ligament and the transverse ligament of the perineum) to enter the pelvic cavity; an unpaired vein
the hymen is the remnant of the urogenital septum of the embryo, and the hymeneal caruncles are remnants of the hymen
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