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{{BioPsy}}
 
{{BioPsy}}
A '''sex organ''', or '''primary sexual characteristic''', as narrowly defined, is any of the anatomical parts of the body which are involved in sexual reproduction and constitute the [[reproductive system]] in a complex organism; in mammals, these are:
+
A '''sex organ''', or '''primary sexual characteristic''', as narrowly defined, is any of the anatomical parts of the body which are involved in sexual reproduction and constitute the [[reproductive system]] in a complex organism; in mammals, these include:
* [[Female]]: [[Bartholin's gland]]s, [[cervix]], [[clitoris]], [[Fallopian tube]]s, [[labia (genitalia)|labia]], [[ovary|ovaries]], [[Skene's gland]], [[uterus]], [[vagina]], [[vulva]]
 
   
* [[Male]]: [[Cowper's gland]]s, [[epididymis]], [[penis]], [[foreskin|prepuce]], [[prostate]], [[scrotum]], [[seminal vesicle]]s, [[testicle]]s
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*[[Female]]
  +
**[[Bartholin's gland]]s
  +
**[[cervix]]
  +
**[[clitoris]]
  +
**[[clitoral hood]]
  +
**[[clitoral glans]] (glans clitoridis)
  +
**[[Fallopian tube]]s
  +
**[[labium (genitalia)|labium]]
  +
**[[ovary|ovaries]]
  +
**[[Skene's gland]]
  +
**[[uterus]]
  +
**[[vagina]]
  +
**[[vulva]]
  +
*[[Male]]
  +
**[[bulbourethral gland]]s
  +
**[[epididymis]]
  +
**[[penis]]
  +
**[[foreskin]]
  +
**[[glans penis]]
  +
**[[prostate]]
  +
**[[scrotum]]
  +
**[[seminal vesicle]]s
  +
**[[testicle]]s
   
The [[Latin]] term '''genitalia''', sometimes anglicized as '''genitals''' and '''genital area''', is used to describe the externally visible sex organs, known as '''primary genitalia''' or '''external genitalia''': in males the [[penis]] and [[scrotum]], in females the [[clitoris]] and [[vulva]].
+
The [[Latin]] term '''genitalia''', sometimes anglicized as '''genitals''' and '''genital area''', is used to describe the externally visible [[sex]] organs, known as '''primary genitalia''' or '''external genitalia''': in males the [[penis]], in females the [[clitoris]] and [[vulva]].
   
 
The other, hidden sex organs are referred to as the '''secondary genitalia''' or '''internal genitalia'''. The most important of these are the [[gonad]]s, a pair of sex organs, specifically the [[testis|testes]] in the male or the [[ovary|ovaries]] in the female. Gonads are the true sex organs, generating reproductive [[gamete]]s containing inheritable DNA. They also produce most of the primary hormones that affect sexual development, and regulate other sexual organs and sexually differentiated behaviors.
 
The other, hidden sex organs are referred to as the '''secondary genitalia''' or '''internal genitalia'''. The most important of these are the [[gonad]]s, a pair of sex organs, specifically the [[testis|testes]] in the male or the [[ovary|ovaries]] in the female. Gonads are the true sex organs, generating reproductive [[gamete]]s containing inheritable DNA. They also produce most of the primary hormones that affect sexual development, and regulate other sexual organs and sexually differentiated behaviors.
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==Development==
 
==Development==
 
{{Main|Development of the reproductive system}}
 
{{Main|Development of the reproductive system}}
  +
It is only in males
 
In typical [[prenatal development]], sexual organs originate from a common [[anlage]] anatomy during early [[gestation]] and differentiate into male or female variations. The [[SRY]] [[gene]], usually located on the [[Y chromosome]] and encoding the [[testis determining factor]], determines the direction of this differentiation. The absence of it allows the gonads to continue to develop into ovaries.
 
In typical [[prenatal development]], sexual organs originate from a common [[anlage]] anatomy during early [[gestation]] and differentiate into male or female variations. The [[SRY]] [[gene]], usually located on the [[Y chromosome]] and encoding the [[testis determining factor]], determines the direction of this differentiation. The absence of it allows the gonads to continue to develop into ovaries.
   
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In a larger perspective, the whole process of [[sexual differentiation]] also includes development of [[secondary sexual characteristics]] such as patterns of pubic and facial hair and female breasts that emerge at puberty. Furthermore, differences in brain structure arises, affecting, but not absolutely determining, behavior.
 
In a larger perspective, the whole process of [[sexual differentiation]] also includes development of [[secondary sexual characteristics]] such as patterns of pubic and facial hair and female breasts that emerge at puberty. Furthermore, differences in brain structure arises, affecting, but not absolutely determining, behavior.
   
== Anatomical terms related to sex ==
+
==Anatomical terms related to sex==
 
The following is a list of anatomical terms related to sex and sexuality:
 
The following is a list of anatomical terms related to sex and sexuality:
* [[areola]]
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*[[areola]]
* [[Bartholin's gland]] — [[breast]] — [[bulbospongiosus muscle]] — [[bulbourethral gland]]
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*[[Bartholin's gland]]
* [[cervix]] — [[Cleft of Venus]] — [[clitoris]] — [[common penile artery]] — [[corona glandis]] — [[corpora cavernosa]] — [[corpus cavernosum]] — [[corpus spongiosum]] — [[Cowper's glands]] — [[cremaster muscle]]
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*[[breast]]
* [[dartos muscle]] — [[ductus deferens]]
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*[[bulbospongiosus muscle]]
* [[ejaculatory duct]] — [[endometrium]] — [[epididymis]] --- [[Egg (biology)|eggs]]
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*[[bulbourethral gland]]
* [[Fallopian tube]] — [[foreskin]] — [[frenulum]] — [[frenulum preputii penis]] — [[frenulum labiorum pudendi]] — [[frenulum clitoridis]] — [[frenum]] — [[fundiform ligament]]
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*[[cervix]]
* [[G-Spot]] — [[Gartner's duct]] — [[genital tubercle]] — [[genitofemoral nerve]] — [[glans]] — [[glans penis]] — [[Gräfenberg spot]]
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*[[cleft of venus]]
* [[hymen]]
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*[[clitoris]]
* [[internal pudendal artery]] — [[intromittent organ]] — [[ischiocavernosus muscle]]
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*[[corona of glans penis]]
* [[labium (genitalia)|labium]] — [[labia majora]] — [[labia minora]]
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*[[corpus cavernosum clitoridis]]
* [[mammae]] — [[mammary gland]] — [[meatus]] — [[mons pubis]] — [[mons pubis|mons veneris]] — [[Mullerian duct]]
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*[[corpus spongiosum penis]]
* [[nipple]]
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*[[cremaster muscle]]
* [[ovary]] — [[ovum]] — [[oviducts]]
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*[[dartos]]
* [[penis]] — [[perineum]] — [[prepuce]] — [[prostate]] — [[pubic hair]] — [[pubic symphysis]] — [[pubococcygeus muscle]] — [[pudendal nerve]]
+
*[[deep perineal pouch]]
* [[Perineal raphe|raphe]] — [[ridged band]]
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*[[Egg (biology)|eggs]]
* [[scrotum]] — [[seminal vesicles]] — [[semeniferous tubules]] — [[Skene's glands]] — [[spermatozoon]] — [[spermatic cord]] — [[sphincter urethrae membranaceae]] — [[splanchnic nerves]]
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*[[ejaculatory duct]]
* [[testes]] — [[testicle]] — [[tunica albuginea (testicles)|tunica albuginea]]
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*[[endometrium]]
* [[urethra]] — [[urethral sponge]] — [[urogenital diaphragm]] — [[uterus]]
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*[[epididymis]]
* [[vas deferens]] — [[vagina]]
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*[[Fallopian tube]]
  +
*[[foreskin]]
  +
*[[frenulum]]
  +
*[[frenulum clitoridis]]
  +
*[[frenulum labiorum pudendi]]
  +
*[[frenulum of prepuce of penis]]
  +
*[[fundiform ligament]]
  +
*[[G-spot]]
  +
*[[Gartner's duct]]
  +
*[[genital tubercle]]
  +
*[[genitofemoral nerve]]
  +
*[[glans]]
  +
*[[glans penis]]
  +
*[[hymen]]
  +
*[[internal pudendal artery]]
  +
*[[intromittent organ]]
  +
*[[ischiocavernosus muscle]]
  +
*[[labia majora]]
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*[[labia minora]]
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*[[labium (genitalia)|labium]]
  +
*[[mammary gland]]
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*[[urinary meatus|meatus]]
  +
*[[mons pubis]]
  +
*[[Müllerian duct]]
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*[[nipple]]
  +
*[[ovary]]
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*[[ovum]]
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*[[penile artery]]
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*[[penis]]
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*[[perineum]]
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*[[prepuce]]
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*[[prostate]]
  +
*[[pubic hair]]
  +
*[[pubic symphysis]]
  +
*[[pubococcygeus muscle]]
  +
*[[pudendal nerve]]
  +
*[[Perineal raphe|raphe]]
  +
*[[ridged band]]
  +
*[[scrotum]]
  +
*[[seminal vesicle]]
  +
*[[seminiferous tubules]]
  +
*[[Skene's glands]]
  +
*[[spermatic cord]]
  +
*[[spermatozoon]]
  +
*[[splanchnic nerves]]
  +
*[[testicle]]
  +
*[[tunica albuginea (testicles)|tunica albuginea]]
  +
*[[urethra]]
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*[[urethral sphincter]]
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*[[urethral sponge]]
  +
*[[uterus]]
  +
*[[vagina]]
  +
*[[vas deferens]]
   
 
==See also==
 
==See also==
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*[[Secondary sex characteristic]]s
 
*[[Secondary sex characteristic]]s
 
*[[Sex]]
 
*[[Sex]]
*[[Sexual behavior]]
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*[[Human sexual behavior]]
 
*[[Sexual intercourse]]
 
*[[Sexual intercourse]]
  +
*[[List of sex positions]]
  +
</div>
   
</div>
 
 
{{human anatomical features}}
 
{{human anatomical features}}
 
 
{{Organ systems}}
 
{{Organ systems}}
   
[[Category:Sexual anatomy| ]]
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[[Category:Sexual anatomy]]
[[Category:Sex organs| ]]
+
[[Category:Sex organs]]
   
<!--
+
<!--
 
[[ar:عضو جنسي]]
 
[[ar:عضو جنسي]]
  +
[[br:Ardivink-genel]]
 
[[cs:Genitálie]]
 
[[cs:Genitálie]]
 
[[cy:System atgenhedlol]]
 
[[cy:System atgenhedlol]]
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[[it:Apparato genitale]]
 
[[it:Apparato genitale]]
 
[[lt:Lytiniai organai]]
 
[[lt:Lytiniai organai]]
  +
[[mr:गुप्तांग]]
 
[[nl:Geslachtsorgaan]]
 
[[nl:Geslachtsorgaan]]
 
[[ja:生殖器]]
 
[[ja:生殖器]]
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[[fi:Sukupuolielin]]
 
[[fi:Sukupuolielin]]
 
[[sv:Könsorgan]]
 
[[sv:Könsorgan]]
  +
[[tl:Kasangkapang pangkasarian]]
 
[[th:อวัยวะเพศ]]
 
[[th:อวัยวะเพศ]]
 
[[tr:Üreme sistemi]]
 
[[tr:Üreme sistemi]]
 
[[uk:Статеві органи]]
 
[[uk:Статеві органи]]
  +
[[zh-yue:生殖器]]
 
[[zh:生殖器]]
 
[[zh:生殖器]]
[[tl:Kasangkapang pangkasarian]]
 
 
-->
 
-->
 
{{enWP|Sex organ}}
 
{{enWP|Sex organ}}

Latest revision as of 23:34, July 28, 2008

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A sex organ, or primary sexual characteristic, as narrowly defined, is any of the anatomical parts of the body which are involved in sexual reproduction and constitute the reproductive system in a complex organism; in mammals, these include:

The Latin term genitalia, sometimes anglicized as genitals and genital area, is used to describe the externally visible sex organs, known as primary genitalia or external genitalia: in males the penis, in females the clitoris and vulva.

The other, hidden sex organs are referred to as the secondary genitalia or internal genitalia. The most important of these are the gonads, a pair of sex organs, specifically the testes in the male or the ovaries in the female. Gonads are the true sex organs, generating reproductive gametes containing inheritable DNA. They also produce most of the primary hormones that affect sexual development, and regulate other sexual organs and sexually differentiated behaviors.

A more ambiguously defined term is erogenous zone, subjectively, any portion of the body that when stimulated produces erotic sensation, but always prominently including the genitalia.

DevelopmentEdit

Main article: Development of the reproductive system

It is only in males In typical prenatal development, sexual organs originate from a common anlage anatomy during early gestation and differentiate into male or female variations. The SRY gene, usually located on the Y chromosome and encoding the testis determining factor, determines the direction of this differentiation. The absence of it allows the gonads to continue to develop into ovaries.

Thereafter, the development of the internal reproductive organs and the external genitalia is determined by hormones produced by certain fetal gonads (ovaries or testes) and the cells' response to them. The initial appearance of the fetal genitalia (a few weeks after conception) looks basically feminine: a pair of "urogenital folds" with a small protuberance in the middle, and the urethra behind the protuberance. If the fetus has testes, and if the testes produce testosterone, and if the cells of the genitals respond to the testosterone, the outer urogenital folds swell and fuse in the midline to produce the scrotum; the protuberance grows larger and straighter to form the penis; the inner urogenital swellings grow, wrap around the penis, and fuse in the midline to form the penile urethra.

Each sexual organ in one sex has a homologous counterpart in the other one. See a list of homologues of the human reproductive system.

In a larger perspective, the whole process of sexual differentiation also includes development of secondary sexual characteristics such as patterns of pubic and facial hair and female breasts that emerge at puberty. Furthermore, differences in brain structure arises, affecting, but not absolutely determining, behavior.

Anatomical terms related to sexEdit

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

See alsoEdit

Human anatomical features

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
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