A sex organ, or primary sexual characteristic, narrowly defined, is any of those anatomical 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 a complex organism; namely:

More generally and popularly, the term "sex organ" refers to any part of the body involved in their and/or their partner's 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, sometimes anglicized as genitals, 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, known as primary genitalia or external genitalia: in males the penis and scrotum, in females the vulva.

The other sex organs are called the secondary genitalia or internal genitalia. An even wider notion, subjective but always prominently including the genitalia, is erogenous zones.

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. The SRY gene, usually located on the Y chromosome and encoding the testis determining factor, decides the direction of this differentiation. 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[edit | edit source]

The following is a list of anatomical terms related to sex and sexuality:

See also[edit | edit source]

Human anatomical features
Human body features.png

HEAD: ForeheadEyeEarNoseMouthTongueTeethJawFaceCheekChin

NECK: ThroatAdam's apple

TORSO: ShouldersSpineChestBreastRibcageAbdomenBelly button

Sex organs (Penis/Scrotum/Testicle or Clitoris/Vagina/Ovary/Uterus) – HipAnusButtocks

LIMBS: ArmElbowForearmWristHandFinger (Thumb - Index finger - Middle finger - Ring finger - Little finger) – LegLapThighKneeCalfHeelAnkleFootToe (Hallux)

SKIN: Hair

Human organ systems
Cardiovascular system - Digestive system - Endocrine system - Immune system - Integumentary system - Lymphatic system - Muscular system - Nervous system - Skeletal system - Reproductive system - Respiratory system - Urinary system

cy:System atgenhedlol da:Kønsorgan de:Geschlechtsorgan es:Gónada fa:اندام جنسی fr:Appareil reproducteur he:מערכת הרבייה lt:Lytiniai organai nl:Geslachtsorgaan pt:Genitália sk:Rozmnožovacia sústava sl:Spolni organ fi:Sukupuolielin sv:Könsorgan zh:生殖器

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