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Encyclopedia > Penis
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This article is about the male sex organ. For the symbol of the erect penis, see phallus.

The penis (plural penises, penes) is an external male sexual organ. The penis is the male reproductive organ and for mammals additionally serves as the external male organ of urination. Image File history File links Padlock. ... The Latin word phallus (from the Greek phallos) and its derived adjective phallic, adopted in English and in many modern languages, refers to the penis. ... The shield and spear of the Roman God Mars are often used to represent the male sex In heterogamous species, male is the sex of an organism, or of a part of an organism, which typically produces smaller, mobile gametes (spermatozoa) that are able to fertilise female gametes (ova). ... 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: Male: penis (notably the glans... Reproduction is the creation of one thing as a copy of, product of, or replacement for a similar thing, e. ... Orders Subclass Multituberculata (extinct) Plagiaulacida Cimolodonta Subclass Palaeoryctoides (extinct) Subclass Triconodonta (extinct) Subclass Eutheria (excludes extinct ancestors) Afrosoricida Anagaloidea (extinct) Artiodactyla Carnivora Cetacea Chiroptera Cimolesta (extinct) Creodonta (extinct) Condylarthra (extinct) Dermoptera Desmostylia (extinct) Dinocerata (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Litopterna (extinct) Macroscelidea Mesonychia (extinct) Notoungulata (extinct) Perissodactyla Pholidota Plesiadapiformes... Urination, also called micturition, is the process of disposing urine from the urinary bladder through the urethra to the outside of the body. ...

Contents

Linguistics

Etymology

The word "penis" was taken from Latin. Some derive that from Indo-European *pesnis, and the Greek word πεος = "penis" from Indo-European *pesos. Latin is an ancient Indo-European language. ... Proto-Indo-European Indo-European studies Indo-European is originally a linguistic term, referring to the Indo-European language family. ...


The Latin word "phallus" (from Greek φαλλος) is sometimes used to describe the penis, though the word "phallus" originally was used to describe images, pictoral or carved, of the penis [1].


Slang

As with nearly any aspect of the human body that is involved in sex, there are many slang words for the penis. Many of these are noted in the bathroom humor article. Toilet humour (also potty humour) is a type of humour dealing with bodily toilet functions. ...


"Penii" is sometimes facetiously used as a plural form of "penis" instead of the correct "penises" or (less commonly used) "penes."

For slang terms for the "penis", see WikiSaurus:penis — the WikiSaurus list of synonyms and slang words for the penis in many languages.

Slang is the use of highly informal words and expressions that are not considered standard in the speakers dialect or language. ... Wiktionary is a Wikimedia Foundation project intended to be a free wiki dictionary (hence: Wiktionary) (including thesaurus and lexicon) in every language. ...

Human penis

The human penis differs from those of some other mammals. It has no baculum, or erectile bone; instead it relies entirely on engorgement with blood to reach its erect state. It cannot be withdrawn into the groin, and is larger than average in the animal kingdom in proportion to body mass. The baculum (also penis bone, penile bone or os penis) is a bone found in the penis of most mammals. ...


Structure

Illustration of the anatomy of the human male genitalia.

The human penis is made up of three columns of erectile tissue: Image File history File links Drawing of the Male Internal Sexual Anatomy From alt. ... Image File history File links Drawing of the Male Internal Sexual Anatomy From alt. ... Biological tissue is any substance made up of cells that perform a similar function within an organism. ...

The corpus spongiosum lies on the underside (known also as the ventral side) of the penis; the two corpora cavernosa lie next to each other on the upper side (dorsal side). 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. ... The anatomical planes The anatomical position is a schematic convention for describing the relative morphology of the human body. ... The anatomical planes The anatomical position is a schematic convention for describing the relative morphology of the human body. ...


The end of the corpus spongiosum is enlarged and bulbous-shaped and forms the glans penis. The glans supports the foreskin or prepuce, a loose fold of skin that in adults can retract to expose the glans. The area on the underside of the penis, where the foreskin is attached, is called the frenum (or frenulum). The glans penis is the sensitive erectile tip of the penis. ... The Male Anatomy The foreskin or prepuce (a technically broader term that also includes the clitoral hood, the analoguous 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 is not erect. ... A frenulum (or frenum) is a small fold of tissue that prevents an organ in the body from moving too far. ...


The urethra, which is the last part of the urinary tract, traverses the corpus spongiosum and its opening, known as the meatus, lies on the tip of the glans penis. It is both a passage for urine and for the ejaculation of semen. Sperm is produced in the testes and stored in the attached epididymis. During ejaculation, sperm are propelled up the vas deferens, two ducts that pass over and behind the bladder. Fluids are added by the seminal vesicles and the vas deferens turns into the ejaculatory ducts which join the urethra inside the prostate gland. The prostate as well as the bulbourethral glands add further secretions, and the semen is expelled through the penis. Female anatomy In anatomy, the urethra is a tube which connects the urinary bladder to the outside of the body. ... The urinary system is a system of organs, tubes, muscles, and nerves that work together to create, store, and carry, urine. ... In anatomy, a meatus is a natural body opening or canal (pl. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... This article does not cite its references or sources. ... Human semen collected on a glass surface during ejaculation process. ... Human male anatomy The testicles, known medically as testes (singular testis), are the male generative glands in animals. ... Male Anatomy The epididymis is part of the human male reproductive system and is present in all male mammals. ... The vas deferens, also called ductus deferens, (Latin: carrying-away vessel) is part of the male anatomy of some species, including humans. ... Male Anatomy The seminal vesicles are a pair of glands on the posterior surface of the urinary bladder of males. ... The Ejaculatory ducts are part of the human male anatomy, which cause the reflex action of ejaculation. ... Male Anatomy The prostate is a gland that is part of male mammalian sex organs. ... The bulbourethral glands (or Cowpers glands) secrete a clear fluid known as pre-ejaculate or Cowpers fluid (colloquially known as pre-cum) which is generated upon sexual arousal. ...


The raphe is the visible ridge between the lateral halves of the penis, found on the ventral or under side of the penis, running from the meatus (opening of the urethra) across the scrotum to the perineum (area between scrotum and anus). This page is a candidate for speedy deletion, because: it is patent nonsense. ... The term lateral can refer to: an anatomical definition of direction. ... In zootomy, several terms are used to describe the location of organs and other structures in the body of bilateral animals. ... The muscles of the male perineum In anatomy, the perineum is the region between the genital area and the anus in both sexes. ...


Puberty

When a boy enters puberty, after his testicles begin to grow his penis begins to enlarge, just like the rest of his genitals. The penis grows longer until the age of 18, but growth in width only begins at the age of 13. During the process, pubic hair grows above and around the penis.


Sexual homology

Main article: Sexual homology

In short, this is a known list of sex organs that evolve from the same tissue in a human life. The List of homologues of the human reproductive system shows how indifferent embryonic organs differentiate into the respective sex organs in males and females. ...


The glans of the penis is homologous to the clitoral glans, the corpora cavernosa are homologous to the body of the clitoris, the corpus spongiosum is homologous to the vestibular bulbs beneath the labia minora, the scrotum is homologous to the labia minora and labia majora, and the foreskin homologous to the clitoral hood. The raphe does not exist in females, because there the two halves are not connected. The glans penis is the sensitive erectile tip of the penis. ... In biology, two or more structures are said to be homologous if they are alike because of shared ancestry. ... The Clitoral Glans is an external portion of the clitoris. ... The Vestibular Bulbs, also known as the Clitoral Bulbs, are an internal part of the Clitoris next to the clitoral body, clitoral crura, urethra, urethral sponge, and vagina. ... Parts of a vulva The external genital organs of the female are collectively known as the vulva (also sometimes called the pudenda). ... Parts of a vulva The external genital organs of the female are collectively known as the vulva (also sometimes called the pudenda). ... In female human anatomy, the clitoral hood, (also called prepuce), is a fold of skin that surrounds and protects the clitoral glans. ...


Erection

Main article: Erection
A penis in both flaccid and fully erect states.
A penis in both flaccid and fully erect states.

An erection is the stiffening and rising of the penis, which occurs in the sexually aroused male, though it can also happen in non-sexual situations. The primary physiological mechanism that brings about erection is the autonomic dilation of arteries supplying blood to the penis, which allows more blood to fill the three spongy erectile tissue chambers in the penis, causing it to lengthen and stiffen. The now engorged erectile tissue presses against and constricts the veins that carry blood away from the penis. More blood enters the penis than leaves until an equilibrium is reached where an equal volume of blood flows into the dilated arteries and out of the constricted veins. A constant erectile size is achieved at equilibrium. An erection of the penis occurs when two tubular structures that run the length of the penis, the corpora cavernosa, become engorged with venous blood. ... Image File history File linksMetadata Penis_corrected. ... Image File history File linksMetadata Penis_corrected. ... Sexual arousal is the process and state of an animal being ready for sexual activity. ...


Erection facilitates sexual intercourse though it is not essential for some other sexual activities. Although many erect penes point upwards (see illustration), it is common and normal for the erect penis to point nearly vertically upwards or nearly vertically downwards, depending on the tension of the suspensory ligament that holds it in position. Stiffness or erectile angle also varies. Coition of a Hemisected Man and Woman (c. ... 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. ...


Size

Main article: Human penis size

As a general rule, an animal's penis is proportional to its body size, but this varies greatly between species — even between closely related species. For example, an adult gorilla's erect penis is about 4 cm (1.5 inches) in length; an adult chimpanzee, significantly smaller (in body size) than a gorilla, has a penis size about double that of the gorilla. In comparison, the human penis is larger than that of any other primate, both proportional to body size and in absolute terms. Compared to other primates, even larger primates such as the gorilla, the male human genitalia are remarkably large. ... Phyla Subregnum Parazoa Porifera (sponges) Subregnum Agnotozoa Placozoa (trichoplax) Orthonectida (orthonectids) Rhombozoa (dicyemids) Subregnum Eumetazoa Radiata (unranked) (radial symmetry) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Bilateria (unranked) (bilateral symmetry) Acoelomorpha (basal) Orthonectida (parasitic to flatworms, echinoderms, etc. ... In biology, a species is one of the basic units of biodiversity. ... Type Species Troglodytes gorilla Savage, 1847 Species Gorilla gorilla Gorilla beringei The gorilla, the largest of the living primates, is a ground-dwelling herbivore that inhabits the forests of Africa. ... metre or meter, see meter (disambiguation) A metre or meter[1] (symbol: m) is a unit of length and the current base unit of length in the International System of Units (SI). ... Mid-19th century tool for converting between different standards of the inch An inch is an Imperial and U.S. customary unit of length. ... Type Species Simia troglodytes Blumenbach, 1775 Species Pan troglodytes Pan paniscus Chimpanzee, often shortened to chimp, is the common name for the two extant species in the genus Pan. ... Trinomial name Homo sapiens sapiens Linnaeus, 1758 Humans, or human beings, are bipedal primates belonging to the mammalian species Homo sapiens (Latin for wise man or knowing man) under the family Hominidae (the great apes). ...


While results vary across studies, the general consensus is that the average human penis is approximately 12.7-15 cm (5-5.9 in) in length and 12.3 cm (4.85 in) in circumference when fully erect. The average penis size is slightly larger than the median size. Most of these studies were done on subjects of primarily European descent. Worldwide averages may vary. The circumference is the distance around a closed curve. ... An erection of the penis occurs when two tubular structures that run the length of the penis, the corpora cavernosa, become engorged with venous blood. ... In mathematics and statistics, the arithmetic mean (or simply the mean) of a list of numbers is the sum of all the members of the list divided by the number of items in the list. ... In probability theory and statistics, a median is a number dividing the higher half of a sample, a population, or a probability distribution from the lower half. ...


A research project summarizing dozens of published studies conducted by physicians of different nationalities, shows that worldwide erect penis size averages vary between 9.6 cm (3.7 in) and 16 cm (6.2 in). It has been suggested that this difference is caused not only by genetics, but also by environmental factors such as culture, diet, chemical/pollution exposure, etc.


As with any other bodily attribute, the length and girth of the penis can be highly variable between individuals of the same species. In many animals, especially mammals, the size of a flaccid penis is much smaller than its erect size. In humans and some other species, flaccid vs. erect penis size varies greatly between individuals, such that penis size when flaccid is not a reliable predictor of size when erect. Orders Subclass Multituberculata (extinct) Plagiaulacida Cimolodonta Subclass Palaeoryctoides (extinct) Subclass Triconodonta (extinct) Subclass Eutheria (excludes extinct ancestors) Afrosoricida Anagaloidea (extinct) Artiodactyla Carnivora Cetacea Chiroptera Cimolesta (extinct) Creodonta (extinct) Condylarthra (extinct) Dermoptera Desmostylia (extinct) Dinocerata (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Litopterna (extinct) Macroscelidea Mesonychia (extinct) Notoungulata (extinct) Perissodactyla Pholidota Plesiadapiformes...


Except for extreme cases at either end of the size spectrum, penis size does not correspond strongly to reproductive ability in almost any species.


Penis enlargement pills have no documented effect.


Normal variations

Depending on temperature, a flaccid (not erect) penis of average size can withdraw almost completely within the body. During erection the penis will return to its normal (erect) size.

  • Other variations:
  • Pearly penile papules are raised bumps of somewhat paler color around the base of the glans and are normal.
  • Fordyce's spots are small, raised, yellowish-white spots 1-2 mm in diameter that may appear on the penis.
  • Sebaceous prominences are raised bumps similar to Fordyce's spots on the shaft of the penis, located at the sebaceous glands and are normal.
  • Phimosis, an inability to retract the foreskin fully, is harmless in infants and pre-pubescent males, occurring in about 8% of boys at age 10.
Curvature of a penis
Curvature of a penis
  • Curvature, Few penes are completely straight with curves commonly seen in all directions (up, down, left, right). Sometimes the curve is very prominent but it rarely inhibits sexual intercourse. Curvature as great as 30 degrees is considered normal and medical treatment is rarely considered unless the angle exceeds 45 degrees. Changes to the curvature of a penis may be caused by Peyronie's disease.

Front and side view of glans with pearly penile papules. ... Color is an important part of the visual arts. ... Fordyces spots are small, raised, yellowish-white spots 1-2mm in diameter that may appear on the penis, as well as the inner surface and vermilion border of the lips of the face, and are normal. ... The sebaceous glands are glands found in the skin of mammals. ... Phimosis is a medical condition in which the foreskin of the penis of an uncircumcised male cannot be fully retracted. ... Image File history File links Penis_angles_4. ... Image File history File links Penis_angles_4. ... Peyronies disease is a rare connective tissue disorder involving the growth of fibrous plaques in the soft tissue of the penis affecting as much as 1% of men. ...

Disorders affecting the penis

Oedema (swelling) of the foreskin can result from sexual activity, including masturbation. Edema (BE: oedema, formerly known as dropsy) is swelling of any organ or tissue due to accumulation of excess fluid. ... // Masturbation is the manual excitation of the sexual organs, most often to the point of orgasm. ...


Paraphimosis is an inability to move the foreskin forward over the glans. It can result from fluid trapped in a foreskin which is left retracted, perhaps following a medical procedure, or accumulation of fluid in the foreskin because of friction during vigorous sexual activity. Paraphimosis is a medical condition where the foreskin becomes trapped behind the glans penis, and cannot be pulled back to its normal flaccid position covering the glans penis. ...


In Peyronie's disease, anomalous scar tissue grows in the soft tissue of the penis, causing curvature. Severe cases can benefit from surgical correction. Peyronies disease is a rare connective tissue disorder involving the growth of fibrous plaques in the soft tissue of the penis affecting as much as 1% of men. ...


A thrombosis can occur during periods of frequent and prolonged sexual activity, especially fellatio. It is usually harmless and self-corrects within a few weeks. Thrombosis is the formation of a clot or thrombus inside a blood vessel, obstructing the flow of blood through the circulatory system. ... Oral sex consists of all those sexual activities that involve the use of the mouth, tongue, etc. ...

Male genital infection of HSV-2 (genital herpes).
Enlarge
Male genital infection of HSV-2 (genital herpes).

Infection with Herpes virus can occur after sexual contact with an infected carrier; this may lead to the development of herpes sores. Image File history File links SOA-Herpes-genitalis-male. ... Image File history File links SOA-Herpes-genitalis-male. ... Genera Subfamily Alphaherpesvirinae    Simplexvirus    Varicellovirus    Mardivirus    Iltovirus Subfamily Betaherpesvirinae    Cytomegalovirus    Muromegalovirus    Roseolovirus Subfamily Gammaherpesvirinae    Lymphocryptovirus    Rhadinovirus Unassigned    Ictalurivirus The Herpesviridae are a family of DNA viruses that cause diseases in humans and animals. ...


Pudendal nerve entrapment is a condition characterized by pain on sitting and loss of penile (or clitoral) sensation and orgasm. Occasionally there is a total loss of sensation and orgasm. The pudendal nerve can be damaged by narrow hard bicycle seats and accidents. Pudendal nerve entrapment (PNE) is a source of chronic pain, in which the pudendal nerve (located in the pelvis) is entrapped or compressed. ... The pudendal nerve is responsible for orgasm, urination, and defecation in both sexes. ...


Penile fracture can occur if the erect penis is bent excessively. A pop or cracking sound and pain is normally associated with this event. Emergency medical assistance should be obtained. Prompt medical attention lowers likelihood of permanent penile curvature. A penile fracture is an injury caused by the rupture of the male corpus cavernosum. ...


In diabetes, peripheral neuropathy can cause tingling in the penile skin and possibly reduced or completely absent sensation. The reduced sensations can lead to injuries for either partner and their absence can make it impossible to have sexual pleasure through stimulation of the penis. Since the problems are caused by permanent nerve damage, preventive treatment through good control of the diabetes is the primary treatment. Some limited recovery may be possible through improved diabetes control. This article is about the disease that features high blood sugar. ... Peripheral neuropathy is the medical term for damage to nerves of the peripheral nervous system, which may be caused either by diseases of the nerve or from the side-effects of systemic illness. ...


Erectile dysfunction or impotence is the inability to have and maintain an erection sufficiently firm for satisfactory sexual performance. Diabetes is a leading cause, as is normal aging. A variety of treatments exist, including drugs such as sildenafil citrate (marketed as Viagra®) which works by vasodilation. Erectile dysfunction or impotence is a sexual dysfunction characterized by the inability to develop or maintain an erection of the penis for satisfactory sexual intercourse regardless of the capability of ejaculation. ... Sildenafil citrate, sold under the names Viagra, Revatio and (in the Indian subcontinent) Caverta, is a drug used to treat male erectile dysfunction (impotence) and pulmonary arterial hypertension (PAH), developed by the pharmaceutical company Pfizer. ... Sildenafil citrate, sold under the names Viagra, Revatio and generically under various other names, is a drug used to treat male erectile dysfunction (impotence) and pulmonary arterial hypertension (PAH), developed by the pharmaceutical company Pfizer. ... The blood vessels are part of the circulatory system and function to transport blood throughout the body. ...


Priapism is a painful and potentially harmful medical condition in which the erect penis does not return to its flaccid state. The causative mechanisms are poorly understood but involve complex neurological and vascular factors. Potential complications include ischaemia, thrombosis, and impotence. In serious cases the condition may result in gangrene, which may necessitate amputation. Bronze sculpture depicting Priapus. ...


Developmental disorders of the penis

Hypospadias is a developmental disorder where the meatus is positioned wrongly at birth. Hypospadias can also occur iatrogenically by the downward pressure of an indwelling urethral catheter.[2] It is usually corrected by surgery. Hypospadias is a birth defect of the urethra in the male that involves an abnormally placed urethral meatus (opening). ... Developmental disorders are disorders that occur at some stage in a childs development, often retarding the development. ... In anatomy, a meatus is a natural body opening or canal (pl. ... An iatrogenic (pronounced , IPA) condition is a state of ill health or adverse effect caused by medical treatment, usually due to mistakes made in treatment. ...


A micropenis is a very small penis caused by developmental or congenital problems. Micropenis is a medical term that describes an unusually small penis in a human male. ...


Diphallia, or penile duplication (PD), is the condition of having two penes. However, this disorder is exceedingly rare. Diphallia, or penile duplication (PD), is a medical condition in which a male infant is born with two penises. ...


Penis replacement

The first successful penis allotransplant surgery was done on September 2005 in a military hospital in Guangzhou, China. (Guangzhou Daily, source) A man at 44 sustained an injury after an accident and his penis was severed. Urination became difficult as his urethra was partly blocked. A newly brain-dead man, at 23, was tracked down and his penis selected for the transplant. Despite atrophy of blood vessels and nerves, the arteries, veins, nerves and the corpora spongiosa were successfully matched. It remains to be observed if infection or rejection has occurred after the transplant and how much sexual function the man would regain. Location within China Canton, China redirects here. ... Urination, also called micturition, is the process of disposing urine from the urinary bladder through the urethra to the outside of the body. ... Brain death is defined as a complete and irreversible cessation of brain activity. ... Atrophy is the partial or complete wasting away of a part of the body. ... Section of an artery An artery or arterial is also a class of highway. ... In biology, a vein is a blood vessel which carries blood toward the heart. ... Transplant rejection occurs when the immune system of the recipient of an transplant attacks the transplanted organ or tissue. ...


Alleged and observed psychological disorders

Genital retraction syndrome (GRS), generally considered a culture-specific syndrome, is a condition in which an individual is overcome with the belief that his/her external genitals - or also, in females, breasts - are retracting into the body, shrinking, or in some male cases, may be imminently removed or disappear. ... A delusion is commonly defined as a fixed false belief and is used in everyday language to describe a belief that is either false, fanciful or derived from deception. ... Location of Southeast Asia Southeast Asia is a subregion of Asia. ... Penis envy in popular culture is understood to mean womens psychological response to their lack of a penis. ... Sigmund Freud His famous couch Sigmund Freud (May 6, 1856 - September 23, 1939) was an Austrian neurologist and the founder of the psychoanalytic school of psychology, a movement that popularized the theory that unconscious motives control much behavior. ... See Envy (band) for the Japanese hardcore band. ...

Altering the male genitalia

Uncircumcised penis (top) compared to

a circumcised penis (bottom) Image File history File linksMetadata Download high resolution version (3528x1700, 897 KB) Licensing I, the creator of this work, hereby grant the permission to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1. ... Image File history File linksMetadata Download high resolution version (1000x444, 232 KB) Summary Circumcised penis. ... An uncircumcised human penis is one in its natural condition, where the foreskin has not been removed by circumcision. ... This article is being rewritten at Circumcision/temp Circumcision is the removal of some or all of the prepuce or foreskin though often the frenulum is also excised. ...

The most prevalent form of genital alteration in some countries is circumcision: removal of part or all of the foreskin for various cultural, religious, and more rarely medical reasons. In many cases, such as in some United States hospitals, the frenulum and part of the shaft skin is also removed. Less commonly, the penis is sometimes pierced or decorated by other body art. Such alterations are almost universally elective and usually for the purpose of aesthetics or increased sensitivity. Piercings of the penis include the Prince Albert piercing, the apadravya piercing, the ampallang piercing, the dydoe piercing, and the frenum piercing. Foreskin restoration or stretching is a further form of body modification. Genital modification and genital mutilation both can refer to permanent or temporary changes to the human genitals. ... It has been suggested that Circumcision advocacy be merged into this article or section. ... Frenulum A frenulum (or frenum) is a small fold of tissue that prevents an organ in the body from moving too far. ... A bead ring, also known as a captive bead ring. ... Bodypainting at Purim Carnival Body art is art made on, with, or consisting of, the human body. ... A Prince Albert piercing The Prince Albert piercing (PA) is a common form of male genital piercing. ... This two sections of this article need merging. The Apadravya is a male genital body piercing. ... The ampallang is a form of male genital body piercing. ... Dydoe piercing is a body piercing of the (usually circumcised) penis which goes through the ridge of the glans. ... frenum piercing A frenum piercing is a type of body piercing located on the underside of the shaft of the penis. ... Foreskin restoration is the process of restoring, via surgical or other methods, the foreskin (prepuce), usually in a circumcised male. ... Body modification (or body alteration) is the permanent or semi-permanent deliberate altering of the human body for non-medical reasons, such as spiritual, various social (markings), BDSM edgeplay or aesthetic. ...


Other practices which alter the penis are also performed, although they are rare in Western societies without a diagnosed medical condition. Apart from a penectomy, perhaps the most radical of these is subincision, in which the urethra is split along the underside of the penis. Subincision originated among Australian Aborigines, although it is now done by some in the U.S. and Europe. Penectomy is the surgical removal of the penis for medical reasons. ... Subincision is a form of body modification consisting of a urethrotomy, in which the underside of the penis is incised and the urethra slit open lengthwise, from the urethral opening (meatus) toward the base. ... Australian Aborigines are the main indigenous people of Australia. ...


Non-human penises

An elephant's penis is one of the largest in the world.
An elephant's penis is one of the largest in the world.

Most marsupials, except for the two largest species of kangaroos, have a bifurcated penis. That is, it separates into two columns, and so the penis has two ends. Urban legend alleges that the dolphin has prehensile control over his penis (it is true, however, that whales and dolphins can move and to a certain degree bend their penis tips to facilitate mating). In the realm of absolute size, the smallest vertebrate penis belongs to the common shrew (5 mm or 0.2 inches). The largest penis belongs to the blue whale estimated at over 2 m (more than 6½ feet). Accurate measurements are difficult to take because the whale's erect length can only be observed during mating. Gorillas have relatively small penes, so it is an often used subtle insult in some countries to insinuate or directly state that one is 'hung like a gorilla'. Download high resolution version (1840x1232, 1073 KB) any idea for an article about this picture? --68. ... Download high resolution version (1840x1232, 1073 KB) any idea for an article about this picture? --68. ... Orders Superorder Ameridelphia Didelphimorphia Paucituberculata Superorder Australidelphia Microbiotheria Dasyuromorphia Peramelemorphia Notoryctemorphia Diprotodontia Marsupials are mammals in which the female typically has a pouch (called the marsupium, from which the name Marsupial derives) in which it rears its young through early infancy. ... Species Macropus rufus Macropus giganteus Macropus fuliginosus A kangaroo is any of several large macropods (the marsupial family that also includes the wallabies, tree-kangaroos, wallaroos, pademelons and the Quokka: 65 species in all). ... The noun bifurcation (from latin bifurcare, to split (fork) into two), has several related meanings. ... Urban legends are a kind of folklore consisting of stories often thought to be factual by those circulating them (see rumor). ... Genera See article below. ... Prehensility is the quality of an organ that has adapted for grasping or holding. ... Type Species Troglodytes gorilla Savage, 1847 Species Gorilla gorilla Gorilla beringei The gorilla, the largest of the living primates, is a ground-dwelling herbivore that inhabits the forests of Africa. ...


The Icelandic Phallological Museum is devoted entirely to collecting penis specimens from all the land and sea mammals living in Iceland. The museum has received a legally-certified gift token for a future specimen belonging to Homo sapiens. The Icelandic Phallological Museum in Húsavík, Iceland (formerly in Reykjavík) is a museum devoted to phallology. ...


Among birds, only paleognathes (tinamous and ratites) and Anatidae (ducks, geese and swans) possess a penis. It is different in structure from mammal penes, being an erectile expansion of the cloacal wall and being erected by lymph, not blood. It is usually partially feathered and in some species features spines and brush-like filaments, and in flaccid state curled up inside the cloaca. The Argentine Blue-bill has the largest penis in relation to body size of all vertebrates; while usually about half the body size (20 cm), a specimen with a remarkable 42.5 cm-long penis is documented. Orders Lithornithiformes Tinamiformes(tinamou) Struthioniformes(ostrich, kiwi, etc. ... Genera The Tinamous are one of the most ancient groups of bird, members of a South American bird family of about 47 species in 9 genera. ... Families Struthionidae Casuariidae Dinornithidae Apterygidae Rheidae A ratite is any of a diverse group of large, flightless birds of Gondwanian origin, most of them now extinct. ... Subfamilies Dendrocygninae Thalassorninae Anserinae Stictonettinae Plectropterinae Tadorninae Anatinae Merginae Oxyurinae Anatidae is the biological family that includes the ducks and most duck-like waterfowl, such as geese and swan. ... In zoological anatomy, a cloaca is the posterior opening that serves as the only such opening for the intestinal, urinary, and genital tracts of certain animal species. ... In mammals including humans, the lymphatic vessels (or lymphatics) are a network of thin tubes that branch, like blood vessels, into tissues throughout the body. ... Binomial name Oxyura vittata (Philippi, 1860) The Argentine Blue-bill or Argentine Lake Duck (Oxyura vittata) is a small South American stiff-tailed duck. ...


Male specimens of the Squamata order of reptiles have two paired organs called hemipenes. In male insects, the structure homologous to a penis is known as aedeagus. The male copulatory organ of various lower invertebrate animals is often called the cirrus. Suborders Amphisbaenia - Worm lizards Sauria- Lizards Serpentes - Snakes Squamata (scaled reptiles) is the largest recent order of reptiles, including lizards and snakes. ... An everted hemipene of a North American rattlesnake (Crotalus adamanteus) Hemipenes are the paired reproductive organs of male snakes and lizards. ... Classes & Orders See taxonomy Insects are invertebrate animals of the Class Insecta, the largest and (on land) most widely-distributed taxon within the phylum Arthropoda. ... An aedeagus (plural aedeagi) is a reproductive organ of male insects through which they secrete sperm from the testes during copulation with a female insect. ...


Cultural aspects involving penises

Uses of animal penes

  • Culinary, e.g., in Chinese gastronomy
  • Magical and therapeutic, in medicine and/or superstition, especially as an alleged aphrodisiac or even cure against impotence
  • Also used for punitive implements and dog toys, such as the bull pizzle

Pizzle is an old English word for penis, derived from Low German pesel or Flemish pezel, diminutive of Dutch pees sinew. It is used in heraldry, where the adjective pizzled indicates that part of an animate charges anatomy, especially if coloured differently. ...

Uses of human penises in cultural traditions

  • Aesthetical, e.g., Body modification
  • For the symbolic and artistic use, see under phallus; in heraldry, the term is pizzle
  • In humor, e.g., in scatology - considered indecent or completely taboo in various cultures

Body modification (or body alteration) is the permanent or semi-permanent deliberate altering of the human body for non-medical reasons, such as spiritual, various social (markings), BDSM edgeplay or aesthetic. ... The Latin word phallus (from the Greek phallos) and its derived adjective phallic, adopted in English and in many modern languages, refers to the penis. ... Pizzle is an old English word for penis, derived from Low German pesel or Flemish pezel, diminutive of Dutch pees sinew. // Original uses It is used in heraldry, where the adjective pizzled indicates that part of an animate charges anatomy, especially if coloured differently. ... In medicine and biology, scatology or coprology is the study of feces. ...

See also

Wikimedia Commons has media related to:
Look up penis in Wiktionary, the free dictionary.

Image File history File links Commons-logo. ... Wikimedia Commons logo by Reid Beels The Wikimedia Commons (also called Commons or Wikicommons) is a repository of free content images, sound and other multimedia files. ... Wikipedia does not have an article with this exact name. ... Wiktionary is a Wikimedia Foundation project intended to be a free wiki dictionary (hence: Wiktionary) (including thesaurus and lexicon) in every language. ... The baculum (also penis bone, penile bone or os penis) is a bone found in the penis of most mammals. ... Hounen Matsuri (Japanese for Harvest Festival) aka Japanese penis festival [1]is a fertility festival celebrated every year on March 15 in Japan. ... Penis enlargement is the goal of a number of men dissatisfied with their penis size. ... The penis game is a chicken-like game meant to be played in a public place. ... Penis envy in popular culture is understood to mean womens psychological response to their lack of a penis. ... This articles section titled Documented cases does not cite its references or sources. ... Phallocrypts are decorative penis sheaths worn in parts of New Guinea during traditional ceremonies. ... Mural of Mercury in Pompeii. ... The phosphodiesterase (PDE) isozymes found in rod and cone photoreceptor cells of the retina belong to a large family of cyclic nucleotide PDEs that catalyze cAMP and cGMP hydrolysis. ... Preputioplasty, also known as limited dorsal slit with transverse closure, is a minor plastic surgical operation on the prepuce or foreskin of the penis. ... Wiktionary is a Wikimedia Foundation project intended to be a free wiki dictionary (hence: Wiktionary) (including thesaurus and lexicon) in every language. ...

External links

  • The Icelandic Phallological Museum,contains collection of over one hundred and fifty penes and penile parts belonging to almost all the land and sea mammals that can be found in Iceland
  • Summary Penis Size data
  • Kinsey Institute on the penis
Reproductive system
Female - Cervix | Clitoris | Clitoral hood | Fallopian tubes | Bartholin's glands | G-spot | Hymen | Labium | Mammary glands | Ovaries | Skene's glands | Urethra | Uterus | Vagina | Vulva
Male - Urethra | Testes | Scrotum | Spermatic cord | Epididymis | Seminiferous tubules | Sertoli cell | Rete testis | Efferent ducts | Vas deferens | Seminal vesicles | Ejaculatory duct | Penis | Corpus cavernosum | Glans penis | Fundiform ligament | Foreskin | Frenulum | Prostate | Bulbourethral glands 


It has been suggested that this article or section be merged into sex organ. ... Schematic frontal view of female anatomy The cervix (from Latin neck) is the lower, narrow portion of the uterus where it joins with the top end of the vagina. ... A womans clitoris extends from the visible portion to a point below the pubic bone. ... In female human anatomy, the clitoral hood, (also called prepuce), is a fold of skin that surrounds and protects the clitoral glans. ... Female internal reproductive anatomy The Fallopian tubes or oviducts are two very fine tubes leading from the ovaries of female mammals into the uterus. ... 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. ... ... Illustration of the female sex organs with hymen The hymen (or maidenhead) is a ring of tissue around the vaginal orifice. ... Labium (pl. ... Cross section of the breast of a human female. ... Human female internal reproductive anatomy Ovaries are egg-producing reproductive organs found in female organisms. ... 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. ... Female anatomy In anatomy, the urethra is a tube which connects the urinary bladder to the outside of the body. ... The uterus or womb is the major female reproductive organ of most mammals, 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. ... Labeled picture of external human female reproductive anatomy. ... Female anatomy In anatomy, the urethra is a tube which connects the urinary bladder to the outside of the body. ... Human male anatomy Human testicles The testicles or testis (singular testicle), are the male generative glands in animals. ... In some male mammals, the scrotum is an external bag of skin and muscle containing the testicles. ... 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. ... Male Anatomy The epididymis is part of the human male reproductive system and is present in all male mammals. ... Human male anatomy The testicles, known medically as testes (singular testis), are the male generative glands in animals. ... A Sertoli cell (a kind of sustentacular cell) is a nurse cell of the testes which is part of a seminiferous tubule. ... Rete testis is an anastomosing network of delicate tubules located in the testicular hilum that carries sperm from the seminiferous tubules to the vasa efferentia. ... The efferent ducts are part of the testes and connect the rete testis with the epididymis. ... The vas deferens, also called ductus deferens, (Latin: carrying-away vessel) is part of the male anatomy of some species, including humans. ... Male Anatomy The seminal vesicles are a pair of glands on the posterior surface of the urinary bladder of males. ... The Ejaculatory ducts are part of the human male anatomy, which cause the reflex action of ejaculation. ... 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. ... The glans penis is the sensitive erectile tip of the penis. ... The fundiform ligament is a specialization of the superficial (Scarpas) fascia of the abdomen. ... The Male Anatomy The foreskin or prepuce (a technically broader term that also includes the clitoral hood, the analoguous 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 is not erect. ... Frenulum A frenulum (or frenum) is a small fold of tissue that prevents an organ in the body from moving too far. ... Male Anatomy The prostate is an exocrine gland of the male mammalian reproductive system. ... The bulbourethral glands (or Cowpers glands) secrete a clear fluid known as pre-ejaculate or Cowpers fluid (colloquially known as pre-cum) which is generated upon sexual arousal. ...

  Human anatomical features  v·d·e 

HEAD: Skull - ForeheadEyeEarNoseMouthTongueTeethJawFaceCheekChin Human anatomy or anthropotomy is a special field within anatomy. ... Image File history File links Human body features (external) Created by Vsion. ... For other uses of the word head, see head (disambiguation). ... For symbolic or mythic uses of the human skull, see Skull (symbolism). ... In human anatomy, the forehead or brow is the bony part of the head above the eyes. ... Closeup of a blue-green human eye. ... A human ear An ear is the organ used by a human or an animal to detect sound waves. ... Human nose in profile A typical bulbous human nose, here used to support a pair of glasses. ... Sagittal section of nose mouth, pharynx, and larynx. ... Tongue The tongue is the large bundle of muscles on the floor of the mouth that manipulates food for chewing and swallowing. ... This article or section does not cite its references or sources. ... It has been suggested that this article or section be merged with jaw. ... The face of Leonardo da Vincis Mona Lisa, one of the most recognized faces in the world A human face The face is the front part of the head, in humans from forehead to chin including the head, hair, forehead, eyebrow, eyes, nose, cheek, mouth, lips, teeth, skin, and... Look up Cheek in Wiktionary, the free dictionary The Cheeks are the fleshy area of the face below the eyes and between the nose and the left or right ear, the skin being suspended by the chin and the yaws. ... Chin may refer to: In the human anatomy, the chin is the lowermost part of the face. ...


NECK: ThroatAdam's apple The neck is the part of the body on many limbed vertebrates that distinguishes the head from the torso or trunk. ... Anatomy In anatomy, the throat is the part of the neck anterior to the vertebral column. ... An example of male laryngeal prominence. ...


TORSO: ShouldersSpineChestBreastRibcageAbdomenBelly button The human torso Torso is an anatomical term for the greater part of the human body without the head and limbs. ... The human upper arm Grays Fig. ... 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. ... Chest of a human male The chest is a part of the anatomy of humans and various other animals. ... Photograph of a pregnant human females breasts. ... The human rib cage. ... The human abdomen (from the Latin word meaning belly) is the part of the body between the pelvis and the thorax. ... An umbilicus which appears as a depression in the abdomen is referred to as an innie. The umbilicus (commonly called a navel, or belly button) is a scar on the abdomen, caused when the umbilical cord is removed from a newborn baby. ...

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

LIMBS: ArmElbowForearmWristHandFinger (Thumb - Index finger - Middle finger - Ring finger - Little finger) – LegLapThighKneeCalf – Heel – AnkleFootToe (Hallux) 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: Male: penis (notably the glans... In some male mammals, the scrotum is an external bag of skin and muscle containing the testicles. ... Human male anatomy Human testicles The testicles or testis (singular testicle), are the male generative glands in animals. ... A womans clitoris extends from the visible portion to a point below the pubic bone. ... 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. ... Human female internal reproductive anatomy Ovaries are egg-producing reproductive organs found in female organisms. ... The uterus or womb is the major female reproductive organ of most mammals, including humans. ... Bones of the hip In anatomy, the hip is the bony projection of the femur, known as the greater trochanter, and the overlying muscle and fat. ... Male Human Anatomy Anal redirects here. ... The buttocks (often called butt, buns, bum, booty, ass or arse) are rounded portions of the anatomy located on the posterior of the pelvic region of the apes and humans. ... A limb (from the Old English lim) is a jointed 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. ... In anatomy, an arm is one of the upper limbs of a two-legged animal. ... Elbow redirects here. ... // The Human Forearm The forearm is the structure on the upper limb, between the elbow and the wrist. ... In human anatomy, the wrist is the flexible and narrower connection between the forearm and the hand. ... A human hand typically has four fingers and a thumb. ... Fingers of the human left hand The finger is any of the digits of the hand in humans and other species such as the great apes. ... In human anatomy, the thumb is the first digit on a hand. ... The Index finger The index finger, pointer finger or forefinger is the second digit of a human hand, located between the thumb and the middle finger. ... This article is about the vulgar gesture. ... The ring finger on this hand is wearing a ring. ... Little finger The little finger, called the pinky in American 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. ... Shaved female legs 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. ... Look up lap in Wiktionary, the free dictionary. ... Diagram of the human thigh bone In humans the thigh is the area between the pelvis and buttocks and the knee. ... For other uses, see Knee (disambiguation). ... A human calf The calf or sura is a pair of muscles—the gastrocnemius and soleus—at the back of the lower human leg. ... The heel is the prominence at the posterior end of the foot. ... Grays Fig. ... A human foot - Enlarge to view legend For other uses, see Foot (disambiguation). ... Toes on foot. ... The hallux or big toe is the biological name for digit I. In humans and non-human primates, the hallux is the largest toe on the foot. ...


SKIN: Hair A close-up of human skin. ... Young Girl Fixing her Hair, by Sophie Gengembre Anderson Hair is a filamentous outgrowth from the skin, found mainly in mammals. ...


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