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Encyclopedia > Sex organ

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: Image File history File links Question_book-3. ... A pictorial illustration of the human female reproductive system. ...

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. For other uses, see Female (disambiguation). ... The Bartholins glands (also called Bartholin glands or greater vestibular glands) are two glands located slightly below and to the left and right of the opening of the vagina in women. ... 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. ... The Fallopian tubes, also known as oviducts, uterine tubes, and salpinges (singular salpinx) are two very fine tubes leading from the ovaries of female mammals into the uterus. ... // For ovary as part of plants see ovary (plants) An ovary is an egg-producing reproductive organ found in female organisms. ... In human anatomy, the Skenes glands (also known as the lesser vestibular, periurethral glands, or paraurethral glands[1]) are glands located on the upper wall of the vagina, around the lower end of the urethra. ... This article is about female reproductive anatomy. ... The vagina, (from Latin, literally sheath or scabbard ) is the tubular tract leading from the uterus to the exterior of the body in female placental mammals and marsupials, or to the cloaca in female birds, monotremes, and some reptiles. ... The external genital organs of the female are collectively known as the vulva (plural vulvae or vulvas)[1]. In common speech, the term vagina is often used improperly to refer to the vulva or female genitals generally, even though, strictly speaking, the vagina is a specific internal structure, whereas the... This article is about the Male sex. ... Male Anatomy In the anatomy of the male human body, the bulbourethral glands (or Cowpers glands) are two small, rounded, and somewhat lobulated bodies, of a yellow color, about the size of peas, placed behind and lateral to the membranous portion of the urethra, between the two layers of... Male Anatomy The epididymis is part of the human male reproductive system and is present in all male mammals. ... The penis (plural penises, penes) is an external male sexual organ. ... The foreskin or prepuce (a technically broader term that also includes the clitoral hood, the homologous structure in women) is a retractable double-layered fold of skin and mucous membrane that covers the glans penis and protects the urinary meatus when the penis. ... The prostate is a compound tubuloalveolar exocrine gland of the male mammalian reproductive system. ... In some male mammals the scrotum is a protuberance of skin and muscle containing the testicles. ... The seminal vesicles are a pair of simple tubular glands posterinferior to the urinary bladder of males. ... Look up testes in Wiktionary, the free dictionary. ... For other uses, see Latins and Latin (disambiguation). ... This article or section does not cite its references or sources. ... The penis (plural penises, penes) is an external male sexual organ. ... The clitoris is a sexual organ that is present only in female mammals. ... The external genital organs of the female are collectively known as the vulva (plural vulvae or vulvas)[1]. In common speech, the term vagina is often used improperly to refer to the vulva or female genitals generally, even though, strictly speaking, the vagina is a specific internal structure, whereas the...


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. The gonad is the organ that makes gametes. ... Human male anatomy The testicles, known medically as testes (singular testis), are the male generative glands in animals. ... // For ovary as part of plants see ovary (plants) An ovary is an egg-producing reproductive organ found in female organisms. ... A gamete (from Ancient Greek γαμετης; translated gamete = wife, gametes = husband) is a cell that fuses with another gamete during fertilization (conception) in organisms that reproduce sexually. ...


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. This article does not cite any references or sources. ...


Development

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. The development of the reproductive system is a part of the prenatal development, and concerns the sex organs. ... This article is about prenatal development in humans. ... Anlage is a fundamental principle, or a foundation for future development. ... Gestation is the carrying of an embryo or fetus inside a female viviparous animal. ... This article is about the SRY gene. ... For other uses, see Gene (disambiguation). ... The human Y chromosome is one of two sex chromosomes, it contains the genes that cause testis development, thus determining maleness. ... Testis-determining factor (TDF) is a general term for the gene (or product thereof) that results in maleness in humans and some other species. ...


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. 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: Male: penis (notably the glans penis... This article is in need of attention from an expert on the subject. ... The urogenital folds are an embryological structure which give rise to a portion of the external genitalia. ... In anatomy, the urethra is a tube which connects the urinary bladder to the outside of the body. ...


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 biology, homology is any similarity between structures that is due to their shared ancestry. ... The List of homologues of the human reproductive system shows how indifferent embryonic organs differentiate into the respective sex organs in males and females. ...


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. This article is about the development of sexual dimorphisms in humans. ... Secondary sex characteristics are traits that distinguish the two sexes of a species, but that are not directly part of the reproductive system. ...


Anatomical terms related to sex

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

Cross section of the breast of a human female. ... The Bartholins glands (also called Bartholin glands or greater vestibular glands) are two glands located slightly below and to the left and right of the opening of the vagina in women. ... For other uses, see Breast (disambiguation). ... Bulbospongiosus is one of the superficial muscles of the perineum. ... A bulbourethral gland (or Cowpers 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 or pudendal cleft 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. ... The penile artery (also known as the common penile artery) is the artery that serves blood to the penis. ... The glans penis is the sensitive tip of the penis. ... A corpus cavernosum is one of a pair of a sponge-like regions of erectile tissue which contain most of the blood in the male penis during erection. ... A corpus cavernosum is one of a pair of a sponge-like regions of erectile tissue which contain most of the blood in the male penis during erection. ... Corpus spongiosum (Plural: Corpora Spongiosa) is the mass of spongy tissue surrounding the male urethra within the penis. ... Male Anatomy In the anatomy of the male human body, the bulbourethral glands (or Cowpers glands) are two small, rounded, and somewhat lobulated bodies, of a yellow color, about the size of peas, placed behind and lateral to the membranous portion of the urethra, between the two layers of... The cremaster muscle is a muscle that covers the testis. ... The dartos is a layer of smooth muscular fiber. ... Male Anatomy The vas deferens, also called ductus deferens, (Latin: carrying-away vessel) is part of the human male anatomy. ... The Ejaculatory ducts are part of the human male anatomy, which cause the reflex action of ejaculation. ... The endometrium is the inner membrane of the mammalian uterus. ... Male Anatomy The epididymis is part of the human male reproductive system and is present in all male mammals. ... 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 leading from the ovaries of female mammals into the uterus. ... The foreskin or prepuce (a technically broader term that also includes the clitoral hood, the homologous structure in women) is a retractable double-layered fold of skin and mucous membrane that covers the glans penis and protects the urinary meatus when the penis. ... A frenulum (or frenum, plural: frenula or frena, from the Latin frÄ“nulum, little bridle, the diminutive of frÄ“num ) is a small fold of tissue that secures or restricts the motion of a mobile organ in the body. ... A frenulum (or frenum) is a small fold of tissue that prevents an organ in the body from moving too far. ... In female human anatomy, the frenulum labiorum pudendi (aka. ... The Frenulum clitoridis (also known as the Crus glandis clitoridis) is a frenulum that surrounds the clitoris. ... A frenulum (or frenum) is a small fold of tissue that prevents an organ in the body from moving too far. ... The fundiform ligament is a specialization of the superficial (Scarpas) fascia of the abdomen. ... ... Gartners duct is a potential embryological remnant in human female development of the mesonephric ducts. ... A genital tubercle is a body of tissue which forms in the ventral, caudal region of mammalian embryos of both sexes, and eventually develops into a phallus. ... In human anatomy, the genitofemoral nerve originates from the upper part of the lumbar plexus of spinal nerves. ... glans Well known Street Art artist from Copenhagen, Denmark. ... The glans penis (or simply glans) is the sensitive tip of the penis. ... Female internal reproductive anatomy. ... For the Greek god of marriage, see Hymenaios. ... Internal pudendal artery is the terminal branch of the anterior trunk of the internal iliac artery which supplies the external genitalia. ... An intromittent organ is a general term for any 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. ... Parts of a vulva The external genital organs of the female are collectively known as the vulva (also sometimes called the pudenda). ... The labia minora (singular: labium minus) or nymphae[1] are two longitudinal cutaneous folds, that normally vary widely in size from woman to woman. ... Mammary glands are milk-secreting adaptations of sweat glands and are the characteristic of mammals which gave the class its name. ... Mammary glands are the organs that, in the female mammal, produce milk for the sustenance of the young. ... The urinary meatus 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, pubic mound), also known simply as the mons, is the soft mound of flesh present in women just above the genitals, raised above the surrounding area due to a pad of fat lying just beneath it which protects... In human anatomy or in mammals in general, the mons pubis (Latin, pubic mound), also known simply as the mons, is the soft mound of flesh present in women just above the genitals, raised above the surrounding area due to a pad of fat lying just beneath it which protects... The Müllerian ducts are paired ducts of the embryo which empty into the cloaca, and which in the female develop into the upper vagina, cervix, uterus and oviducts; in the male they disappear except for the vestigial vagina masculina and the appendix testis. ... This article is about the anatomical structure. ... // For ovary as part of plants see ovary (plants) An ovary is an egg-producing reproductive organ found in female organisms. ... A human ovum Sperm cells attempting to fertilize an ovum An ovum (plural ova) is a haploid female reproductive cell or gamete. ... The penis (plural penises, penes) is an external male sexual organ. ... In human anatomy, the perineum, also called the taint, or gooch, is generally defined as the surface region in both males and females between the pubic symphysis and the coccyx. ... The prepuce is a retractable piece of skin which covers part of the genitals of primates and other mammals. ... The prostate is a compound tubuloalveolar exocrine gland of the male mammalian reproductive system. ... 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 uniting the superior rami of the left and right pubic bones (pubis). ... 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 floor of the pelvic cavity and supporting the pelvic organs. ... The pudendal nerve is responsible for orgasm, urination, and defecation in both sexes. ... 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 (penile raphe). ... The ridged band is part of the foreskin. ... In some male mammals the scrotum is a protuberance of skin and muscle containing the testicles. ... Categories: Stub | Andrology | Exocrine system | Reproductive system ... Seminiferous tubules are located in the testicles, and are the specific location of meiosis, and the subsequent creation of gametes, and sperm. ... In human anatomy, the Skenes glands (also known as the lesser vestibular or paraurethral glands) are glands located on the upper wall of the vagina, around the lower end of the urethra. ... A spermatozoon or spermatozoan ( spermatozoa), from the ancient Greek σπέρμα (seed) and (living being) and more commonly known as a sperm cell, is the haploid cell that is the male gamete. ... Male Anatomy The spermatic cord is the name given to the cord-like structure formed by the vas deferens and surrounding tissue (veins, arteries, nerves, and lymphatic vessels) that run from the abdomen down to each testicle. ... The Sphincter urethræ membranaceæ surrounds the whole length of the membranous portion of the urethra, and is enclosed in the fasciæ of the urogenital diaphragm. ... The splanchnic nerves are part of the autonomic nervous system. ... Human male anatomy The testicles, known medically as testes (singular testis), are the male generative glands in animals. ... Look up testes in Wiktionary, the free dictionary. ... For other structures with the same name, see Tunica albuginea. ... In anatomy, the urethra is a tube which connects the urinary bladder to the outside of the body. ... Female internal reproductive anatomy The urethral sponge is a spongy cushion of tissue, found in the lower genital area of women, that sits against both the pubic bone and vaginal wall, and surrounds the urethra. ... The urogenital diaphragm is an archaic term describing a layer of the pelvis separating deep perineal sac from the upper pelvis. ... This article is about female reproductive anatomy. ... The vas deferens (plural: vasa deferentia), also called ductus deferens, (Latin: carrying-away vessel) is part of the male anatomy of some species, including humans. ... The vagina, (from Latin, literally sheath or scabbard ) is the tubular tract leading from the uterus to the exterior of the body in female placental mammals and marsupials, or to the cloaca in female birds, monotremes, and some reptiles. ...

See also

Castration (also referred as: gelding, neutering, orchiectomy, orchidectomy, and oophorectomy) is any action, surgical, chemical, or otherwise, by which a male loses the functions of the testes or a female loses the functions of the ovaries. ... This article is about male circumcision. ... Genital modification and genital mutilation both can refer to permanent or temporary changes to the human genitals. ... This article is about human sexual perceptions. ... This article or section is in need of attention from an expert on the subject. ... Intersexuality is the state of a person whose sex chromosomes, genitalia and/or secondary sex characteristics are determined to be neither exclusively male nor female. ... Private parts redirects here. ... Transgender is a very 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. ... Obstetrics and Gynaecology (often abbreviated to OB/GYN or O&G) are the two surgical specialties dealing with the female reproductive organs, and as such are often combined to form a single medical speciality and postgraduate training program. ... Oophorectomy is the surgical removal of the ovaries of a female animal. ... A peacock displays his long, colored feathers, an example of his secondary sexual characteristics. ... This article or section does not cite its references or sources. ... Sexual behavior is a form of physical intimacy that may be directed to reproduction (one possible goal of sexual intercourse) and/or to the enjoyment of activity involving sexual gratification. ... It has been suggested that Duration of sexual intercourse be merged into this article or section. ... List of bones of the human skeleton Human anatomy is primarily the scientific study of the morphology of the adult human body. ... For other uses of the word head, see head (disambiguation). ... In humans, the adult skull is normally made up of 22 bones. ... In human anatomy, the forehead or brow is the bony part of the head above the eyes. ... For other uses, see Eye (disambiguation). ... For other uses, see Ear (disambiguation). ... The visible part of the human nose is the protruding part of the face that bears the nostrils. ... Sagittal section of nose mouth, pharynx, and larynx. ... For other uses, see Tongue (disambiguation). ... Teeth redirects here. ... The mandible (from Latin mandibÅ­la, jawbone) or inferior maxillary bone is, together with the maxilla, the largest and strongest bone of the face. ... For other uses, see Face (disambiguation). ... This article is about the anatomical feature. ... This article is about the part of the face. ... Image File history File links Human body features (external) Created by Vsion. ... For other uses, see Neck (disambiguation). ... For other uses, see Throat (disambiguation). ... For other uses, see Adams apple (disambiguation). ... The human torso Torso is an anatomical term for the greater part of the human body without the head and limbs. ... This article is about the body part. ... The vertebral column seen from the side Different regions (curvatures) of the vertebral column The vertebral column (backbone or spine) is a column of vertebrae situated in the dorsal aspect of the abdomen. ... For other uses, see Breast (disambiguation). ... The Tail of Spence (or Spences tail) is an extension of the tissue of the breast which extends into the axilla (armpit). ... Male Chest The chest is a part of the anatomy of humans and various other animals. ... The human rib cage is a part of the human skeleton within the thoracic area. ... The human abdomen (from the Latin word meaning belly) is the part of the body between the pelvis and the thorax. ... This article does not cite any references or sources. ... The clitoris is a sexual organ that is present only in female mammals. ... The vagina, (from Latin, literally sheath or scabbard ) is the tubular tract leading from the uterus to the exterior of the body in female placental mammals and marsupials, or to the cloaca in female birds, monotremes, and some reptiles. ... The penis (plural penises, penes) is an external male sexual organ. ... In some male mammals the scrotum is a protuberance of skin and muscle containing the testicles. ... Look up testes in Wiktionary, the free dictionary. ... In anatomy, the hip is the bony projection of the femur which is known as the greater trochanter, and the overlying muscle and fat. ... This article is about the bodily orifice. ... Bottom commonly refers to the human buttocks but also has other uses. ... A limb (from the Old English lim) is a jointed, or prehensile (as octopus tentacles or new world monkey tails), appendage of the human or animal body; a large or main branch of a tree; a representative, branch or member of a group or organization. ... Look up ARM in Wiktionary, the free dictionary. ... For the band, see Elbow (band). ... // The Human Forearm The forearm is the structure on the upper limb, between the elbow and the wrist. ... For the municipality in Germany, see Wrist, Germany. ... For other uses, see Hand (disambiguation). ... This article does not cite any references or sources. ... For other uses, see Thumb (disambiguation). ... The second digit of a human hand is also referred to as the index finger, pointer finger, forefinger, trigger finger, digitus secundus, or digitus II. It is located between the first and third digits - that is, between the thumb and the middle finger. ... This article is about the vulgar gesture. ... The ring finger is the fourth digit of the human hand, and the second most ulnar finger, located between the middle finger and the little finger. ... The little finger, often called the pinky in American English and pinkie in Scottish English (from the Dutch word pink, meaning little finger), is the most ulnar and usually smallest finger of the human hand, opposite the thumb, next to the ring finger. ... In common usage, a human leg is the lower limb of the body, extending from the hip to the ankle, and including the thigh, the knee, and the cnemis. ... Manuel Márquez de León International Airport (IATA: LAP, ICAO: MMLP) is an international airport located at La Paz, Baja California Sur, Mexico. ... In humans the thigh is the area between the pelvis and buttocks and the knee. ... For other uses, see Knee (disambiguation). ... The calf or gastrosoleus is a pair of muscles—the gastrocnemius and soleus—at the back of the lower human leg. ... For other uses, see Heel (disambiguation). ... For a review of anatomical terms, see Anatomical position and Anatomical terms of location. ... For other uses, see Foot (disambiguation). ... This article is about the body part. ... Toes on foot. ... For other uses, see Skin (disambiguation). ... For the 1968 stage production, see Hair (musical), for the 1979 film, see Hair (film). ... List of bones of the human skeleton Human anatomy is primarily the scientific study of the morphology of the adult human body. ... For transport in plants, see Vascular tissue. ... what was here was sick and improperly spelled. ... The endocrine system is an integrated system of small organs that involve the release of extracellular signaling molecules known as hormones. ... A scanning electron microscope image of a single neutrophil (yellow), engulfing anthrax bacteria (orange). ... In zootomy, the integumentary system is the external covering of the body, comprising the skin, hair, scales, nails, sweat glands and their products (sweat and mucus). ... The lymphatic system is a complex network of lymphoid organs, lymph nodes, lymph ducts, lymphatic tissues, lymph capillaries and lymph vessels that produce and transport lymph fluid from tissues to the circulatory system. ... The muscular system is the anatomical system of a species that allows it to move. ... The nervous system is a highly specialized network whose principal components are nerves called neurons. ... A pictorial illustration of the human female reproductive system. ... Among quadrupeds, the respiratory system generally includes tubes, such as the bronchi, used to carry air to the lungs, where gas exchange takes place. ... Front view of a skeleton of an adult human Back view of a skeleton of an adult human The human skeleton consists of both fused and individual bones supported and supplemented by ligaments, tendons, muscles and cartilage. ... The urinary system is the organ system that produces, stores, and eliminates urine. ...

  Results from FactBites:
 
Circumcised Penis Effect On Sex and Love<i>Making</i> (511 words)
In effect, then, the sex organs are actually the generators of love because they create feelings of love in the brain.
However, because the circumcised penis is an unnatural sex organ, it astoundingly abnormalizes the sex act, which, in turn, abnormalizes the feelings of love for one's sex partner.
However, because circumcised sex has so many potentially negative effects on sexual relations, and inasmuch as sexual fulfillment is an important aspect of marital happiness, doesn't it make sense that the harm caused by circumcised sex could be a significant contributing factor to America's high divorce statistics.
  More results at FactBites »

 
 

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