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:

• Female: Bartholin's glands, cervix, clitoris, Fallopian tubes, labia, ovaries, Skene's gland, uterus, vagina, vulva

• Male: Cowper's glands, epididymis, penis, prepuce, prostate, scrotum, seminal vesicles, testicles

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 reproductive system is a system of organs within an Organism which work together for the purpose of Reproduction. Female (♀ is the Sex of an Organism, or a part of an organism which produces ova (egg cells The Bartholin's glands (also called Bartholin glands or greater vestibular glands) are two Glands located slightly below and to the left and right of the The cervix (from Latin "neck" is the lower narrow portion of the Uterus where it joins with the top end of the Vagina. The clitoris is a sexual organ that is present only in Female Mammals In humans the visible button-like portion is located near the Anterior The Fallopian tubes, also known as oviducts, uterine tubes, and salpinges ( singular salpinx) are two very fine tubes lined with ciliated Labium (plural labia) is a Latin -derived term meaning " Lip " "Ovaria" redirects here This is also a proposed section and a Synonym of Solanum. In Human anatomy (female the Skene's glands (also known as the lesser vestibular, periurethral glands, skene glands, paraurethral The uterus (from the Latin word for womb) is the major Female reproductive organ of most Mammals including Humans One end the The vagina (from Latin, literally " Sheath " or " Scabbard " is a fibromuscular tubular tract leading from the Uterus The vulva (from Latin, vulva, plural vulvae or vulvas; see etymology) is the region of the external genital organs Male (♂ refers to the sex of an organism or part of an organism which produces small mobile Gametes called spermatozoa. A bulbourethral Gland (or Cowper 's gland) is one of two small Exocrine glands present in the Reproductive system of human males The epididymis is part of the Human Male Reproductive system and is present in all male Mammals It is a narrow tightly-coiled Tube The penis (plural penises, penes In Male Human Anatomy, the foreskin or prepuce (a technically broader term that also includes the Clitoral hood, the homologous The prostate (from Greek προστάτης - prostates, literally "one who stands before" "protector" "guardian" is a In some Male Mammals the scrotum - also 'scrutum' or 'scrootum' - is a protuberance of Skin and Muscle containing the Testicles The seminal vesicles ( glandulae vesiculosae) are a pair of simple tubular glands posteroinferior to the Urinary bladder of males The testicle (from Latin testiculus, diminutive of testis, meaning "witness" virility plural testes) is the male Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome. An organism's sex is defined by the gametes it produces males produce male gametes (spermatozoa or Sperm) while females produce female gametes (ova or Egg cells; individual The penis (plural penises, penes The clitoris is a sexual organ that is present only in Female Mammals In humans the visible button-like portion is located near the Anterior The vulva (from Latin, vulva, plural vulvae or vulvas; see etymology) is the region of the external genital organs

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. The gonad is the organ that makes Gametes The gonads in males are the Testes and the gonads in Females are the Ovaries. The testicle (from Latin testiculus, diminutive of testis, meaning "witness" virility plural testes) is the male "Ovaria" redirects here This is also a proposed section and a Synonym of Solanum. Gonads are the true sex organs, generating reproductive gametes containing inheritable DNA. A gamete (from Ancient Greek γαμέτης; translated gamete = wife gametes = husband is a cell that fuses with another gamete 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. An erogenous zone is an area of the Human body that has heightened Sensitivity and stimulation of which normally results in sexual response.

Development

Main article: Development of the reproductive system

In typical prenatal development, sexual organs originate from a common anlage anatomy during early gestation and differentiate into male or female variations. The development of the reproductive system is a part of the Prenatal development, and concerns the Sex organs. Prenatal development is the process in which an embryo or fetus (or foetus) gestates during Pregnancy, from fertilization Gestation is the carrying of an Embryo or Fetus inside a Female Viviparous Animal. The SRY gene, usually located on the Y chromosome and encoding the testis determining factor, determines the direction of this differentiation. SRY ( Sex-determining Region Y) is a Sex -determining Gene on the Y chromosome in the Therians (placental mammals and marsupials History See also History of genetics The existence of genes was first suggested by Gregor Mendel (1822-1884 who in the 1860s studied inheritance The Y chromosome is the sex-determining Chromosome in most Mammals including Humans In mammals it contains the gene SRY, which triggers Testis-determining factor ( TDF) is a general term for the Gene (or product thereof that results in Maleness in humans and some other species 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. 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 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. Fetal genital development refers to the sequence of events which leads to the develoment of the Genitals and their adnexa The urogenital folds (or urogenital ridges, or urethral folds) are an embryological structure which give rise to a portion of the external Genitalia In Anatomy, the urethra (from Greek ουρήθρα - ourethra) is a tube which connects the Urinary bladder to the outside of 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. In Evolutionary biology, homology has come to mean any similarity between characters that is due to their shared ancestry. See a list of homologues of the human reproductive system. The List of homologues of the human Reproductive system shows how indifferent Embryonic organs differentiate into the respective sex organs in

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. See Sex differences in humans for permanent sex differences Sexual differentiation is the process of development of the differences between Secondary sex characteristics are traits that distinguish the two Sexes of a species but that are not directly part of the Reproductive system. Furthermore, differences in brain structure arises, affecting, but not absolutely determining, behavior.

Anatomical terms related to sex

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

• areola
• Bartholin's gland — breast — bulbospongiosus muscle — bulbourethral gland
• cervix — Cleft of Venus — clitoris — common penile artery — corona glandis — corpus cavernosum (pl. This aritcle is about the breast tissue For the Entomology term see Glossary of Lepidopteran_terms#Wings. The Bartholin's glands (also called Bartholin glands or greater vestibular glands) are two Glands located slightly below and to the left and right of the The breast is the upper Ventral region of an animal’s Torso, particularly that of Mammals including Human beings. Bulbospongiosus ( bulbocavernous in older texts is one of the superficial Muscles of the Perineum. A bulbourethral Gland (or Cowper 's gland) is one of two small Exocrine glands present in the Reproductive system of human males The cervix (from Latin "neck" is the lower narrow portion of the Uterus where it joins with the top end of the Vagina. The cleft of venus ( pudendal cleft, pudendal fissure) is the furrow at the base of the Mons veneris where it divides to form the Labia majora The clitoris is a sexual organ that is present only in Female Mammals In humans the visible button-like portion is located near the Anterior The penile artery (also known as the common penile artery) is the artery that serves blood to the Penis. The circumference of the base of the glans forms a rounded projecting border the corona of the glans penis, overhanging a deep retroglandular sulcus behind which is the neck corpora cavernosa) — corpus spongiosum — Cowper's glands — cremaster muscle
• dartos muscle — ductus deferens
• ejaculatory duct — endometrium — epididymis --- eggs
• Fallopian tube — foreskin — frenulum — frenulum preputii penis — frenulum labiorum pudendi — frenulum clitoridis — frenum — fundiform ligament
• G-Spot — Gartner's duct — genital tubercle — genitofemoral nerve — glans — glans penis — Gräfenberg spot
• hymen
• internal pudendal artery — intromittent organ — ischiocavernosus muscle
• labium — labia majora — labia minora
• mammae — mammary gland — meatus — mons pubis — mons veneris — Mullerian duct
• nipple
• ovary — ovum — oviducts
• penis — perineum — prepuce — prostate — pubic hair — pubic symphysis — pubococcygeus muscle — pudendal nerve
• raphe — ridged band
• scrotum — seminal vesicles — semeniferous tubules — Skene's glands — spermatozoon — spermatic cord — sphincter urethrae membranaceae — splanchnic nerves
• testes — testicle — tunica albuginea
• urethra — urethral sponge — urogenital diaphragm — uterus
• vas deferens — vagina

See also

Corpus spongiosum (Plural Corpora Spongiosa (also known as corpus cavernosum urethrae in older texts is the mass of spongy tissue surrounding the male Urethra A bulbourethral Gland (or Cowper 's gland) is one of two small Exocrine glands present in the Reproductive system of human males The cremaster muscle is a Muscle that covers the testis. Contraction Its function is to raise and lower the Scrotum in order to regulate The dartos is a layer of smooth muscular fiber outside the External spermatic fascia but below the Skin. The vas deferens (plural vasa deferentia also called ductus deferens, ( Latin: "carrying-away vessel" is part of the Male Anatomy The Ejaculatory ducts ( ductus ejaculatorii) are paired structures in male Anatomy, about 2 cm in length The endometrium is the inner membrane of the Mammalian Uterus. The epididymis is part of the Human Male Reproductive system and is present in all male Mammals It is a narrow tightly-coiled Tube In most Birds and Reptiles an egg ( Latin ovum) is the Zygote, resulting from Fertilization of the Ovum. The Fallopian tubes, also known as oviducts, uterine tubes, and salpinges ( singular salpinx) are two very fine tubes lined with ciliated In Male Human Anatomy, the foreskin or prepuce (a technically broader term that also includes the Clitoral hood, the homologous The word Frenulum on its own is often used for the frenulum of prepuce of penis, which is an elastic band of tissue under the Glans penis that connects In female Human anatomy, the frenulum labiorum pudendi (aka the fourchette) is a Frenulum where the Labia minora meet The Frenulum clitoridis (also known as the Crus glandis clitoridis) is a Frenulum on the under-surface of the Clitoral glans, created by the two medial The fundiform ligament is a specialization thickening of the superficial ( Scarpa's) Fascia extending from the Linea alba of the lower Abdominal wall The Gräfenberg spot, or G-spot, is a female Erogenous zone which when stimulated leads to high levels of sexual arousal and powerful Orgasms Gartner's duct is a potential Embryological remnant in human female development of the Mesonephric ducts in the Development of the urinary and reproductive organs A genital tubercle is a body of tissue present in the Development of the urinary and reproductive organs. In human Anatomy, the genitofemoral nerve originates from the upper part of the Lumbar plexus of spinal nerves The glans ( Latin for " Acorn " is a structure internally composed of Corpus spongiosum in males or of Corpus cavernosa and vestibular The glans penis (or simply glans) is the sensitive tip of the Penis. The Gräfenberg spot, or G-spot, is a female Erogenous zone which when stimulated leads to high levels of sexual arousal and powerful Orgasms The hymen (also called maidenhead) is a fold of Mucous membrane which surrounds or partially covers the external Vaginal opening The internal pudendal artery is an Artery that branches off the Internal iliac artery, providing blood to the External genitalia. An intromittent organ is a general term for an external organ of a Male organism that is specialized to deliver Sperm during copulation. The ischiocavernosus muscle is a muscle just below the surface of the Perineum, present in both men and women Labium (plural labia) is a Latin -derived term meaning " Lip " The labia majora (singular labium majus) are two prominent Longitudinal Cutaneous folds which extend downward and backward from the Mons pubis The labia minora (singular labium minus) or nymphae are two longitudinal Cutaneous folds on the human Vulva. Mammary glands are the organs that in Mammals produce Milk for the sustenance of the young Mammary glands are the organs that in Mammals produce Milk for the sustenance of the young The urinary meatus (pronounced /mē-ˈā-təs/) is the external Orifice of the Urethra, from which Urine is ejected during Urination In Human anatomy or in mammals in general the mons pubis (Latin for " pubic mound " also known as the mons veneris (Latin mound of In Human anatomy or in mammals in general the mons pubis (Latin for " pubic mound " also known as the mons veneris (Latin mound of The Müllerian ducts (or paramesonephric ducts) are paired ducts of the Embryo which run down the lateral sides of the Urogenital ridge and terminate at In its most general form a nipple is a Structure from which a fluid emanates "Ovaria" redirects here This is also a proposed section and a Synonym of Solanum. An ovum (plural ova) is a Haploid Female reproductive cell or Gamete. The Fallopian tubes, also known as oviducts, uterine tubes, and salpinges ( singular salpinx) are two very fine tubes lined with ciliated The penis (plural penises, penes In Human anatomy, the perineum is generally defined as the surface region in both males and females between the Pubic symphysis and the Coccyx. The prostate (from Greek προστάτης - prostates, literally "one who stands before" "protector" "guardian" is a Pubic hair is Hair in the frontal Genital area the crotch, and sometimes at the top of the inside of the legs these areas form the pubic region The pubic symphysis is the midline cartilaginous Joint (secondary cartilaginous uniting the superior rami of the left and right pubic bones. The pubococcygeus muscle or PC muscle is a hammock-like muscle found in both sexes that stretches from the Pubic bone to the Coccyx (tail bone forming The pudendal nerve is a Nerve in the pelvic region that innervates the external genitalia of both sexes as well as sphincters for the bladder and the Rectum The perineal raphe extends from the Anus, through the mid-line of the Scrotum (scrotal raphe and upwards through the posterior mid-line aspect of the Penis The ridged band is believed to be an anatomically distinct part of the Foreskin. In some Male Mammals the scrotum - also 'scrutum' or 'scrootum' - is a protuberance of Skin and Muscle containing the Testicles The seminal vesicles ( glandulae vesiculosae) are a pair of simple tubular glands posteroinferior to the Urinary bladder of males Seminiferous tubules are located in the Testicles and are the specific location of Meiosis, and the subsequent creation of gametes, namely Spermatozoa In Human anatomy (female the Skene's glands (also known as the lesser vestibular, periurethral glands, skene glands, paraurethral A spermatozoon or spermatozoan ( pl spermatozoa) from the Ancient Greek σπέρμα (seed and ζῷον (living being and more commonly known The spermatic cord is the name given to the cord-like structure in males formed by the Vas deferens and surrounding tissue that run from the Abdomen down to each The urethral sphincter is a collective name for the Muscles used to control the flow of Urine (micturition from the Urinary bladder. The splanchnic nerves are paired nerves that contribute to the Innervation of the viscera, carrying fibers of the Autonomic nervous system (visceral efferent fibers The testicle (from Latin testiculus, diminutive of testis, meaning "witness" virility plural testes) is the male The testicle (from Latin testiculus, diminutive of testis, meaning "witness" virility plural testes) is the male For other structures with the same name see Tunica albuginea. In Anatomy, the urethra (from Greek ουρήθρα - ourethra) is a tube which connects the Urinary bladder to the outside of The urethral sponge is a spongy cushion of tissue, found in the lower genital area of Women, that sits against both the Pubic bone The deep perineal pouch (also deep perineal space) is an anatomical term that refers to the space enclosed in part by the Perineum, and located superior to the The uterus (from the Latin word for womb) is the major Female reproductive organ of most Mammals including Humans One end the The vas deferens (plural vasa deferentia also called ductus deferens, ( Latin: "carrying-away vessel" is part of the Male Anatomy The vagina (from Latin, literally " Sheath " or " Scabbard " is a fibromuscular tubular tract leading from the Uterus Castration (also referred to as Gelding, Neutering, Fixing, orchiectomy, and orchidectomy is any action surgical, chemical Male circumcision is the removal of some or all of the Foreskin (prepuce from the Penis. The terms genital modification and genital mutilation can refer to permanent or temporary changes to Human Genitals. Generally speaking human sexuality is how people experience and express themselves as sexual beings A hysterectomy (from Greek hystera "womb" is the surgical removal of the Uterus, usually performed by a gynecologist. Intersexuality is the state of a living thing of a gonochoristic species whose Sex chromosomes, Genitalia, and/or Secondary sex characteristics An intimate or private part is a place on the human body which it is usually customary to keep covered with Clothing in public areas as a matter of Decency Transgender is a complex topic where consensual and precise definitions have not yet been reached In Medicine, mastectomy is the medical term for the surgical removal of one or both Breasts partially or completely As per the discussion in the Talk page there has been no consensus as to using the American (gynecology or British (gynaecology spelling for this article BUT Oophorectomy (or ovariectomy) is the surgical removal of an Ovary or ovaries Secondary sex characteristics are traits that distinguish the two Sexes of a species but that are not directly part of the Reproductive system. An organism's sex is defined by the gametes it produces males produce male gametes (spermatozoa or Sperm) while females produce female gametes (ova or Egg cells; individual Human sexual behavior or different human sexual practices encompass a wide range of activities such as strategies to find or attract partners ( Mating and display Sexual intercourse, in its biological sense is the act in which the male reproductive organ (in humans and other higher animals enters the female reproductive tract This list of sex positions includes descriptions of various forms of Sexual intercourse and other sexual acts between people

© 2009 citizendia.org; parts available under the terms of GNU Free Documentation License, from http://en.wikipedia.org
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic