:: wikimiki.org ::

Sexual Penetration

Sexual penetration

Sexual penetration (as opposed to outercourse) typically involves the insertion of the penis into a bodily orifice. Sexual penetration can also be performed with a finger, tongue or object such as a strap-on dildo or other sex toy. Penetration with the penis is also known as intromission, or by the Latin name immissio penis.

External links

- W. W. Schultz, P. van Andel, I. Sabelis, E. Mooyaart. [http://bmj.bmjjournals.com/cgi/content/full/319/7225/1596 Magnetic resonance imaging of male and female genitals during coitus and female sexual arousal.] BMJ 1999;319:1596-1600 (18 December). Category:Sexual acts

Human sexual behavior

:This article is about sex acts and practices (i.e., physical sex). Broader aspects of sexual behavior such as social and psychological sexual issues are covered in related articles such as human sexuality, heterosexuality, and homosexuality. Sexual behavior in humans is an instinctive form of physical intimacy. It may be performed for the purposes of reproduction, spiritual transcendence, expressing affection, and/or having fun and enjoying oneself (known in this context as "sexual gratification"). The desire to have sex is one of the basic drives of human behavior.

Sexuality and sensuality

There is no clear borderline between the sexual and nonsexual enjoyment of touching someone else's body. For example, holding hands may or may not have a sexual connotation, depending on culture, situation and other factors. Although the most common form of heterosexual sexual intercourse is universally regarded as sexual contact, there are a wide range of other sexual behaviors that may or may not be socially, legally, or ethically considered as sexual relations. The distinction between the sexual and the nonsexual becomes relevant in judging appropriate behavior, in either a social setting or in the eyes of the law. Some criteria that may be applied are:
- the body parts involved (see also intimate parts)
- physical signs of sexual arousal
- subjective feeling Enjoying touching someone else's body implies enjoying one's own body also; the latter may also happen without another person; enjoying one's own body also may or may not be of a sexual nature. If it is, it is called autoeroticism. The whole of one's sexual activities (including erotic dreams and waking sexual fantasies and daydreams) is called one's sex life.

Desire and fantasy

Sexual desire or libido is the desire for sexual behavior. Most people focus their sexual desire on someone that they have a sexual relationship with, or would desire to have a sexual relationship with. See also sexual arousal, sexual orientation. Many people enjoy fantasizing about, or reading or viewing depictions of, sexual fantasies of activities that they do not wish to engage in in their own lives, or that they would be unable to engage in in their own lives; see pornography and erotica.

Sexual relationships

Opinions and norms vary about whether an emotional bond of a certain intensity and durability should be a prerequisite for sex (see also below). Like other primates, Homo sapiens use sexuality for reproduction and for maintenance of social bonds. It is generally acknowledged that children are capable of feeling sexual pleasure, even if they are not yet able to engage in sexual intercourse with each other, and/or are not yet biologically able to reproduce. Yet, child sexuality has historically been severely limited in western societies; in the late 19th century, the hysteria surrounding so-called "self-abuse" (masturbation) among children reached its peak and fueled the adoption of circumcision (including female circumcision) in some cultures. Many sexual activities can be engaged in by same sex or opposite sex partners. However some, most notably vaginal sexual intercourse, can only be engaged in by partners of opposite sexes. And others, such as tribadism and frication can only be engaged in by partners of the same sex. As with other behaviors, our high intelligence and complex societies have produced in us the most complicated sexual behaviors of any animal. Most people experiment with a range of sexual activities during their lives, though they tend to engage in only a few of these regularly. Most people enjoy some sexual activities. However, most societies have defined some sexual activities as inappropriate (wrong person, wrong activity, wrong time, etc.) Some people enjoy many different sexual activities, while others avoid sexual activities altogether for religious or other reasons (see chastity, sexual abstinence, asexuality). Historically, most societies and religions have viewed sex as appropriate only within marriage. There is still a widespread belief that sex acts are devalued when engaged in outside of a long-term, monogamous romantic relationship, but extra-marital sexual activity and casual sex became increasingly accepted in modern society during the sexual revolution.

Norms and rules

Sexual behavior, like other kinds of social activity, is generally governed by rules which are culturally specific and vary widely (see sexual morality, sexual norms). Some activities are actually illegal in some jurisdictions even between (or among) consenting people (see sex crime, sodomy law, incest). Some people engage in various sexual activities as a business transaction; this is called prostitution. Nearly all cultures consider it a serious crime to force someone to engage in sexual behavior or to engage in sexual behavior with someone who does not consent. This is called sexual assault, and in the case of sexual intercourse it is called rape, the most serious kind of sexual assault. Details on this distinction may vary. Also, precisely what constitutes effective consent to have sex varies from culture to culture and is frequently debated. Laws regulating what constitutes consent, including the minimum age at which a person can consent to have sex, are frequently the subject of debate; see age of consent.

Safety Caution - Read this carefully before proceeding

Danger of causing pregnancy and how to avoid

Body fluids and birth control

All sexual behaviors that involve the contact of semen with the vagina or vulva may result in pregnancy. To prevent pregnancy, many people employ a variety of birth control measures.

Danger of sexually transmitted diseases and how to avoid

All sexual behaviors that involve contact with another person or the bodily fluids of another person entail some risk of transmission of sexually transmitted diseases, which is why safer sex techniques are recommended. These techniques are generally seen as less necessary for those in committed monogamous relationships with persons who have been demonstrated to be free of disease; see fluid bonding.

Screening of sex partners

Due to the extreme risk of death from HIV and AIDS, and due to the risk of severe illness (and possible death) from other sexually transmitted diseases, it is of the utmost importance that potential sex partners be tested for STDs before engaging in sex.

Seeking a Partner

A key sexual behavior throughout the entire animal kingdom is the seeking of a sex partner. Humans are no exception to this rule. A sexual encounter can be the result of the sending signals indicating readiness for sex, and being receptive to reciprocal signals. Or, it might be the result of years of planning, through the use of cultural rituals such as courtship and marriage.

The search for a partner

Before having sex with another person, first it is necessary to find a partner. This may not be easy, as it requires meeting people who are available for a relationship. Where does one look? One will never know when or where one will meet someone they are attracted to, so the simple answer to this question is: everywhere! In the supermarket, in restaurants, at the movies, on the monorail; in short, if you can think it, it's possible. Our society has developed entire industries devoted to enabling this type of communication: nightclubs, singles bars, personal want ads (in newspapers and on the web), dating services, and brothels, to name just a few. Many organizations and clubs sponsor events that bring people with similar interests together. Religious and family connections provide another way for people to meet.

Encounters between potential partners

Once you've located the person you desire to have sex with, the first thing you must do is introduce yourself or position yourself in such a way that he or she will introduce himself or herself to you. But this isn't as simple as it sounds...

Sexual signals

The communication between people that can lead to a sexual liaison -- are necessarily subtle and complex. An overt declaration, e.g. "I would like to have sex with you" is more likely than not to be rebuffed. From early childhood, strategies for successful communication are learned and honed through practice. Much of this communication is nonverbal. By adulthood, the subtleties of meeting the eyes of another, smiling, laughing and flirting have been practiced and learned.

Successful communication

Once a person has taken advantage of opportunities to enter into communication with a potential sex partner, then the likelihood and speed with which that communication will lead to sexual intercourse depends on a combination of cultural norms, the person's desire for a relationship, and skill at interpersonal communication. A successful communication is one that goes two ways. Listening well, including picking up on non-verbal cues, is a crucial skill. Active listening, in which the listener responds to indicate understanding, is a direct route to successful communication.

The fear of rejection

The fear of rejection is common when trying to befriend a potential partner. If the participants are both sensitive to the other's signals, then they can detect quickly whether their sexual objectives are mutual. If they discover soon enough that their objectives are at odds with one another, then a conversation can end before either one loses face, and then each person can seek others with whom to communicate. On the other hand, if the communication results in an escalating sense of intimacy for both participants, then a degree of trust is established that mitigates the fear of rejection.

The use of drugs to enhance communication

Recreational drugs are often used in social settings in the belief that they enhance interpersonal communication. The world's most popular recreational drugs are alcohol, cannabis, caffeine and nicotine.
- Alcohol is sometimes called a "social lubricant" because it reduces inhibitions, including those caused by the fear of rejection. At the same time, though, alcohol impairs judgment, making a person less receptive to subtle signals, which can result in less effective communication. More importantly, this judgement impairment can lead to foolish decision-making regarding sex, such as engaging in sex without testing or protection.
- Cannabis can induce increased appreciation for humor and art, which might improve communication. But at the same time, it can cause one to become introspective, and thus less inclined to communicate.
- Caffeine and nicotine are stimulants. Others include amphetamines and cocaine. Stimulants can increase alertness and improve attention, both of which can improve one's ability to communicate effectively. However, stimulants also have adverse health effects when used in large amounts.

Personal prerequisites to having sex with someone

Many people have special rules they must follow, due to their religious beliefs, morals, or personal preferences before they can have sex with someone.

No prerequisites

This is known as casual sex. You simply ask the person if he or she wants to have sex, or signal your intent through non-verbal cues.

Blood test as a prerequisite for sex

This is a very sensible strategy. One requires that his or her potential sexual partners be tested for AIDS and other STIs before deciding whether or not to have sex with them. The most reliable approach is to contact the clinic or lab directly for the test results (which requires the person who was tested accompany you or give you written permission).

Dating as a prerequisite for sex

Many people follow the rule "no sex on the first date", implying that you have to have more than one date in order to have sex with them. What this actually means is that they want to get to know you first, and if they like you well enough (or fall in love with you), then they will have sex with you.

Falling in love as a prerequisite for sex

For many people, having sex with someone they are not in love with just isn't any fun. For others, waiting until they've found someone they've fallen in love is simply their preference. It's a romantic approach.

Marriage as a prerequisite for sex

Some people believe in not having sex until they are married. Many religions require that one wait until he or she is married before having sex.

Sex acts and practices

- Ageplay
- Anal sex
- Handballing
- Pegging
- Autoeroticism
- Casual sex
- Cross dressing
- Dirty talk
- Fisting
- Foreplay (aka "petting")
- Lingerie (erotic clothing)
- Cross dressing
- Group sex
- Swinging
- Gangbanging
- Orgies
- Menage a trois (threesomes)
- Hogging
- Masturbation
- Anal masturbation
- Sex toys, using
- Handballing
- Oral sex
- Chili dog
- Cunnilingus
- Fellatio
- Rimming
- Felching
- Tea bagging
- Snowballing
- Outercourse
- Play piercing
- Pornography
- Premarital sex
- Roleplay
- Safe sex
- Seduction
- Sensual massage
- Sex positions
- Sex toys, using
- Vibrators
- Dildos
- Strap-on dildos
- Sybians
- Butt-plugs
- Sexual lubricants
- Sex dolls
- Nipple clamps
- Thumb clamps and Toe clamps
- Anal beads
- Sex games
- Pocket pussies or Masturbation sleeves
- Fleshlights
- Cock-rings
- Penis sleeves
- Penis extensions
- Ben wah balls
- Kegel exercisers
- Sexual fetishism
- Sexual intercourse
- Vaginal sex
- Sexual roleplaying
- Wax play There are many variations of the above activities. Many of these are included in the comprehensive list of sex positions. There are many names for the above acts. For a comprehensive treatment of these, see the list of sexual slang. Generally less common, but still widespread, are the various paraphilias. Some of the more common ones are:
- BDSM
- List of BDSM organizations
- List of BDSM equipment
- Bondage
- List of bondage positions
- S&M
- Sexual masochism is the recurrent urge or behavior of wanting to be humiliated, beaten, bound, or otherwise made to suffer.
- Sexual sadism is the recurrent urge or behavior involving acts in which the pain or humiliation of the victim is sexually exciting.
- Discipline
- Domination and submission
- Impact play
- Erotic Spanking
- Flogging
- Paddling
- Caning
- Exhibitionism is the recurrent urge or behavior to expose one's genitals to an unsuspecting person
- Fetishism is the use of non-sexual or nonliving objects to gain sexual excitement.
- Foot fetishism
- Leather fetishism
- Rubber fetishism
- Spanking
- Transvestic fetishism is wearing clothes of another gender for sexual reasons.
- Pedophilia is the sexual attraction to prepubescent children.
- Perversion
- Polyamory
- Pygmalionism
- Polyamory
- Frotteurism is the recurrent urges or behavior of touching or rubbing against a nonconsenting person.
- Tribadism
- Voyeurism is the recurrent urge or behavior to observe an unsuspecting person who is naked, disrobing or engaging in sexual activities. Some forms of sexual activity involve someone else, but not touching the other:
- Dirty talk
- Phone sex
- Cybersex
- Exhibitionism
- voyeurism Other special forms of human sexual behaviour:
- Prostitution
- Orgies
- Role-playing

Different-gender sexual practices

Different-gender sexual practices are sexual activities between two or more individuals of more than one gender, usually one man and one woman. People who engage exclusively in different-gender sexual practices do not necessarily identify themselves as straight or heterosexual, though (unlike homosexual for same-gender sexual practices) most definitions of "heterosexual" would include them despite varying levels of activity, frequency, and interest. In fact, they may identify themselves as straight or heterosexual, bisexual, or not at all. Likewise, an individual who practices both same and different sex sexual behaviour may identify himself or herself as gay, lesbian, bisexual, straight, or not at all. Many situations, like public high school, and cultural factors, such as anti-gay bias and harassment, heterosexism and heteronormativity, may cause or encourage people who ordinarily would not have sexual relationships with people of a different gender to do so, but once gay people are away from such situations, they will usually return to same-sex sexual activity. In other cases, people may experiment with different (and/or same) gender sexual activity before settling on a sexual identity, if ever. Though often associated with gay men, anal sex is a common different-gender sexual practice. The anus is "tighter" than the vagina and thus may be preferable to the male during penetration; additionally, many people enjoy flouting cultural sexual taboos. Anal sex is not advisable as birth control as it is still possible, though unlikely, for semen to enter the vagina. Different-gender anal sex is also often practiced where the woman penetrates the man with a strap-on dildo, known as pegging. Different-sex sexual practices are limited by laws in America and many other places. In America marriage laws may serve the purpose of encouraging people to only have sex (and children) within marriage. Sodomy laws may be seen as encouraging different-sex sexual practices. Laws also ban adults from committing sexual abuse, committing sexual activities with anyone under an age of consent, performing sexual activities in public, and engaging in sexual activities for money (prostitution), though these laws all cover same-sex sexual activities they may differ with regards punishment and may more frequently or only be enforced on same-sex sexual activities. Laws also control the making and viewing of pornography, including different-sex sexual activities. Courting, or dating, is the process through which people choose potential sexual and/or marital partners. Among straight (presumably middle-class) teenagers and adolescents in the mid-20th century in America, dating was something one could do with multiple people before choosing to "go steady" with only one, the eventual goal being either sex, marriage, or both. More recently dating has become what going steady was and the latter term has fallen into disuse. Different-sex sexual practices may be monogamous, serially monogamous, or polyamorous, and, depending on the definition of sexual practice, abstinent or autoerotic (including masturbation). Different moral and political movements have waged for changes in different-sex sexual practices including courting and marriage, though changes are usually made only slowly in all countries. Especially in the USA, campaigns have often sparked and been fueled by moral panic. There, movements to discourage same-sex sexual practices often claim to be strengthening different-sex sexual practices within marriage, such as Defense of Marriage Act and the proposed Federal Marriage Amendment.

Same-gender sexual practices

Same-gender sexual practices are sexual activities involving two or more individuals of the same gender. It is possible for homosexual acts to be committed by those who self-identify as heterosexual. i.e., mutual masturbation in the context of what may be considered "normal" heterosexual teen development. Homosexual males who pretend to lead a life of heterosexuality are often referred to as living "closeted" lives, that is, they hide their sexuality in the "closet". The term "closet case" is a derogatory term used by homosexuals to refer to another homosexual that pretends to be heterosexual. Despite stereotypes and common misconceptions, there are no forms of sexual activity exclusive to same-gender sexual behavior that can not also be found in opposite-gender sexual behavior, save those involving contact of the same sex genitalia. (see tribadism, frot) Certain situations, like incarceration or single-sex schools and other sex-segregated environments, may often lead people who would not ordinarily seek sex with others of their own gender to this kind of sexual behavior. In other cases, some people may experiment or explore their sexuality with same (and/or different) gender sexual activity before defining their sexual identity. Health campaigns and officials often seek to target self-identified "straight" or bisexual "Men who have Sex with Men" or "Men who like Sex with Men" (MSM) as opposed to self-identified "gay" or homosexual men. People who engage exclusively in same-sex sexual practices do not necessarily identify themselves as "gay" or "lesbian", and different definitions of homosexual may include or exclude people with varying levels of activity, frequency, or interest. Among some sectors of African-American homosexual sub-culture (called "men on the DL" or "down-low"), same-sex sexual behavior is sometimes viewed as solely for physical pleasure. Men on the "down-low" may engage in regular (though often covert) sex acts with other men while continuing sexual and romantic relationships with women. These men often shun the more commonly-known "gay" as a term applying to stereotypically flamboyant and effeminate men of European ancestry there, a group from which some may wish to distance themselves. Some sociologists and researchers in queer studies have suggested that this mostly African-American subculture may have come about because of stronger stigmas against same-sex behavior in African-American communities, and, due to more widespread poverty, greater dependence on possibly homophobic family networks for support. See also: cottaging, cruising for sex, gay bathhouse, men who have sex with men.

Legal issues

Various forms of same-gender sexual activity have been prohibited under law in many areas at different times in history. In 2003, the Lawrence v Texas United States Supreme Court decision overturned all such laws in the US. Usually, though not always, such laws are termed sodomy laws, but also include issues such as age of consent laws, "decency" laws, and so forth. Laws prohibiting same-gender sexuality have varied widely throughout history, varying by culture, religious and social taboos and customs, etc. Often such laws are targeted or applied differently based on gender as well. For example, laws against same-gender sexual behavior in England during the reign of Queen Victoria, sodomy or "buggery" laws were aimed specifically at male same-gender sexual activity and did not target or even address female same-gender sexual activity. A well known example of such laws applied in modern times can be found in Alan Turing.

External links

- [http://www2.hu-berlin.de/sexology/GESUND/ARCHIV/SEN/INDEX.HTM Human Sexuality: An Encyclopedia]
- [http://www2.rz.hu-berlin.de/sexology/GESUND/ARCHIV/IES/BEGIN.HTM The International Encyclopedia of Sexuality] Sexual behavior Sexual behavior Sexual behavior Sexual behavior Sexual behavior Sexual behavior ja:性行為

Outercourse

Outercourse is sexual activity that does not involve penetration. No bodily fluids are intended to be exchanged, and outercourse is therefore often considered a practice of safer sex as well as of birth control (but see below for exceptions). Some practices of outercourse include oral sex, sexual roleplaying, heavy petting, clothed frotteurism, and mutual masturbation. This is particularly common within male-to-male sexual practices and norms. Other specific forms of outercourse include:
- axillary intercourse, putting the penis in the other person's armpit
- interfemoral intercourse, putting the penis between the other person's thighs
- mammary intercourse, putting the penis between the other person's breasts
- frotteurism and tribadism, same sex genital-to-genital friction.
- intercrural intercourse, placing the penis of one partner between the other partner's thighs, either from the front or rear Note that with oral sex, there is a higher risk (varying on how much higher by what activity one is referring to) of getting sexually transmitted diseases (including HIV) than with other forms of outercourse, but studies have shown (so far) that there is less chance of getting these diseases through oral sex than with vaginal intercourse. One can reduce the risk of getting sexually transmitted diseases this way by using barrier methods. The risk of pregnancy with oral sex is only through contact between sperm-bearing fluids such as semen or Cowper's fluid and female sex organs, though the sex organs aren't usually in close contact with oral sex. Note that interfemoral intercourse and genital rubbing, although notionally forms of outercourse, can carry a risk of pregnancy through transfer of sperm-bearing fluids such as semen or Cowper's fluid to the sex organs, and that any of the activities above can pose a risk of sexually transmitted diseases if any body fluids are deposited on wounds or mucous membranes such as those of the sex organs or anal membranes. Outercourse in preparation of intercourse is also called foreplay.

External link

- [http://www.nvsh.nl/Website_Engels/Texts/Sexual_Information/Basics/Skills_1.htm#greatsex "Great sex without intercourse", NVSH] (contains graphic depictions) Category:Sex moves

Bodily orifice

In a typical mammalian body such as the human body, the body orifices are:
- the nostrils, for breathing and the associated sense of smell
- the mouth, for eating and vocalizations such as speech
- the ear canals, for the sense of hearing
- the anus, for defecation
- the urethra, for urination (and in males, for ejaculation)
- in females, the vagina, for sexual intercourse, menstruation and childbirth In other organisms with different body plans, there are other body orifices, such as the cloaca in reptiles, and the siphon in cephalopods. See also: Mucosa, Mucocutaneous boundary, meatus Category:Anatomy

Finger

:For the network protocol, see finger protocol. For the hand gesture, see the finger. ----

Human fingers; 15kb
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. The grace of the fingers is not sacrificed to their dexterity due to the placement of their muscles in the forearm, with motion communicated via long tendons which may be observed on the back of the hand. A notable exception is the thumb, with its flexor and rotators comprised in the hand itself. The bones of the fingers are called phalanges (singular phalanx); the thumb has two phalanges, and the other fingers have three. The fingers' names in English are shown below, from the most radial to the most ulnar: # thumb # index finger, pointer finger, or forefinger # middle finger or long finger # ring finger # little finger or pinky finger

Anatomy of the finger

In anatomy, the thumb is the first finger and the little finger is the fifth finger. Thus the third finger means the middle finger in anatomy, not the ring finger as in daily English. Relative to much of the skin of the human body, the fingertips have a high concentration of nerve endings, equipping them as centers of tactile sensation; touching something or someone is often done with the hands and in particular the fingers. There are three bones in each finger called the proximal phalanx, the middle phalanx and the distal phalanx. Each finger has three joints. The first joint is where the finger joins the hand. This joint is where the bones that form the palm of the hand, the metacarpals, join with the first bone of the finger, called the proximal phalanx. The second joint is the proximal interphalangeal joint, sometimes called the PIP joint for short. The last joint of the finger is called the distal interphalangeal joint, or DIP. Each of these joints is covered with articular cartilage. Articular cartilage is the smooth spongy material that covers the end of bones that make up a joint. The cartilage allows the bones to slide easily against one another as the joint moves through its range of motion. Another important example of this capacity is in the ability to read Braille. Additionally, prehension is enhanced by the presence of the ridges and whorls known as fingerprints. Each finger is protected at its dorsal terminus by a fingernail (Latin unguis, unguiculus). In young children, the fingertip is one of the few tissues in the human body capable of full regeneration, although this ability disappears after about age 6. [http://www.straightdope.com/mailbag/mnewlimb.html]

Tongue

:Alternative meaning: Tongue, Highland Tongue, Highland The tongue is the large bundle of muscles on the floor of the mouth that manipulates food for chewing and swallowing. It is one of the organs of taste. Much of the surface of the tongue is covered in taste buds. The tongue assists in forming the sounds of speech. The word tongue can be used as a synonym for language, e.g., as in the phrase mother tongue. It is also examined and observed diagnostically in traditional Chinese medicine. The tongue is made mainly of skeletal muscle and attached to the hyoid bone, mandible and the styloid processes of the temporal bone. The muscles that attach the tongue are the extrinsic muscles of the tongue. Inside the tongue, there are four pairs of intrinsic muscles that can alter the shape of the tongue for talking and swallowing. Since it contains no supporting skeletal structures for the muscles, the tongue is an example of a muscular hydrostat, like an octopus arm. The dorsum (top side) of the tongue can be divided into two parts, an oral part that lies mostly in the mouth, and a pharyngeal part (posterior third of the tongue), which faces backward to the oropharynx. The two parts are separated by a V-shape groove, the sulcus terminalis (or terminal sulcus). The dorsal side of the anterior two-thirds (oral part) of the tongue is covered with small bumpy projections called papillae. There are four types of papillae: filiform (thread-shape), fungiform (mushroom-shape), foliate (leaf-shape), and vallate (ringed-circle). All papillae except the filiform have taste buds on their surface. At the back of the oral part of the tongue there are 3 to 14 vallate papillae arranged in a V-shape in front of the sulcus terminalis. There are no lingual papillae on the underside of the tongue. It is covered with a smooth mucous membrane, with a fold (the lingual frenulum) in the center. The upper side of the posterior tongue (pharyngeal part) has no visible taste buds, but it is bumpy because of the lymphatic nodules lying underneath. These follicles are known as the lingual tonsil. Things related to the tongue are often called lingual, which comes from the Latin word, or glossal, which comes from the Greek word for tongue. The tongue is the strongest muscle in the human body proportional to size.

Intrinsic muscles of the tongue

Four pairs of muscles originate within the tongue, and run in parallel down its length.
- The superior longitudinal muscle runs along the superior surface of the tongue under the mucous membrane, and allows the tongue to curl.
- The inferior longitudinal muscle lines the sides of the tongue, and is joined to the styloglossus muscle.
- The verticalis muscle is located in the middle of the tongue, and joins the superior and inferior longitudinal muscles.
- The transversus muscle divides the tongue at the middle, and is attached to the mucous membranes that run along the sides.

White tongue

White spots and patches or coating of the tongue are a symptom of several medical conditions:
- Antibiotics side effect
- Candidiasis
- Debauch
- Dehydration
- Leukoplakia
- Keratosis pharyngis
- Jaundice - causes a yellow tongue

Sex toy

A sex toy is any object or device that is primarily used in facilitating human sexual pleasure. This term can also include BDSM apparatuses. Sex toys do not include contraceptives, pornography, or condoms. A related term is marital aid, often used as a euphemism for sex toys, although marital aid is broader as it can also be applied to drugs and herbs marketed as supposedly enhancing or prolonging sex.

Legal issues

In many areas, such as some U.S. Southern states, the sale of sex toys is either regulated or prohibited, though enforcement is rare. Nonetheless the laws are on the books and these laws prohibiting or regulating "obscene devices" occasionally take center stage. As recently as 1999, an assistant attorney general in Alabama commenting on a case involving sex toys and discussing to what end the devices are used was quoted as saying there is no "fundamental right for a person to buy a device to produce orgasm". It is also common practice for someone to move a motor home near a proposed sex shop as a means of protest to prevent the shop from opening where the law prohibits an "adult" establishment within a certain distance of a dwelling.

Types of sex toys

Male and female

- Anal beads consist of a string of beads which is inserted into the anus and then slowly pulled out to provide a very satisfying stimulation, often at the moment of orgasm, in order to enhance the strength of the orgasm in both men and women.
- Butt plugs are devices that are inserted in the anus, typically to stimulate the prostate gland for pleasure. They should have a flared end to prevent the device from being lost inside the body.
- An electrode is used in erotic electrostimulation to apply electricity to various parts of the body for sexual gratification. A stainless steel urethral sound may be used as such an electrode when connected to electrostimulation equipment.
- G Spot sex toys are dildos or vibrators that are designed, usually with a curved or hooked end, to hit the G Spot
- Sex machines are mechanical devices used to simulate penetrative intercourse, usually, but not always, requiring electric or gas power to function.
- Sexual lubricants are lubricants used to facilitate anal or vaginal sex, or as an aid to masturbation.
- A strap-on dildo and harness, generally strapped to the groin and hips, allows a person to penetrate a partner as if the dildo were the penetrator's own penis. In particular, they allow a woman to penetrate a man anally, referred to as pegging, or another woman vaginally or anally. They may also be used by impotent men to allow them to penetrate their partner; strap-on dildos used this way are generally hollow, rather than solid.
- Sybian is the brand name of a combination of a saddle-shaped mount with a vibrator built onto it.
- Sex dolls more commonly known as "blow up dolls," are imitations of the human form intended for simulation of some sexual acts. They may consist of a representation of a face, the buttocks, genital areas, or the entire body. Most sex dolls are inflatable. Love pillows, especially popular in Japan, are inflatable pillows with a life-size picture of a porn star or anime character and optionally a hole for penetration. More expensive realistic sex dolls exist, such as the Realdoll, the cost of which runs into several thousand dollars.
- Nipple clamps are a family of tools which apply pressure to the nipples. They are often used as BDSM toys or torture devices. Some of them can also provide constant, intense nipple stimulation and heightened sensitivity.
- Sex Games are usually like traditional board or card games but their terminology, content and objectives are sex oriented.

Penile toys

torture
- "Pocket pussies" or "vaginas" or "masturbators" (see Fleshlight) are modeled to accept a penis for simulated intercourse. They can be shaped like vaginas, anuses, or anything with a hole for penetration. The Fleshlight is a popular variant of the 'artificial vagina,' and can be penetrated in a way similar to coitus. See sex machine.
- Cock rings in their most basic form enhance and prolong a man's erection by keeping blood inside the penis. A man may wear a cock ring because he has erectile difficulties, or because he likes the particular sensation of tightness and extreme engorgement that wearing one provides. Some models include a protruding clitoral stimulator, designed to tickle the clitoris during sex. Others vibrate, either vibrating the ring itself, or in a popular 'Dolphin' variant using two removable bullet vibrators to provide stimulation to the testicles and clitoris. Some cock rings have vibrators attached which can be worn to stimulate a partner during sexual intercourse or the scrotum or perineum.
- A triple crown is a cock ring that has additional rings for restraining the testicles. In orgasm, the testicles usually retract towards the body before ejaculation. A triple crown changes and intensifies the sensation of orgasm by forcing the testicles to stay away from the body.
- A cock harness is a more elaborate harness designed to be worn around the penis and scrotum. Its intention is similar to that of a cock ring. Often associated with BDSM activities such as cock and ball torture.
- A penis sleeve is a cylindrical device that is placed on the shaft of the penis, with the aim of increasing stimulation for the person being penetrated. They often have soft bumps intended to provide further stimulation.
- A penis extension is a partially hollow device like a very short dildo, with the hollow end placed on the end of the penis, intended to increase the effective length of the penis, again for the benefit of the person being penetrated. These are generally worn with condoms to stop them falling off in use.
- A docking sleeve is a cylindrical device similar to a penis sleeve, but is open at both ends, so that two men can dock.

Vaginal / Clitoral stimulation

dock
- A dildo is a non-vibrating device which is used for sexual stimulation of the vagina and/or anus. Godemiche is an old word for a dildo in the shape of a penis and scrotum.
- A double-ended dildo is a long, usually flexible dildo with both ends designed for penetration. It allows for mutual penetration between two persons.
- Vibrators are vibrating devices intended to stimulate the nerves of the body. Vibrators intended for sexual use are often dildo-shaped, although they also come in a wide range of shapes and sizes, allowing internal as well as external use. Most women report using vibrators for clitoral stimulation, and as such models designed for this purpose, such as the Eroscillator, a toothbrush-like device, the Hitachi Magic Wand, a powerful muscle massager used on the clitoris, or small and basic egg-sized vibrators.
- Ben Wa balls are hollow metal balls, are inserted vaginally, and can be worn inside the vagina for extended periods of time. The internal rolling is said to enhance orgasms, and enable women with vaginal difficulties to reach orgasm.
- Kegel exercisers, also known as vaginal barbells, are designed to improve muscle tone in the pelvic floor, and can be used for sexual pleasure as well as enhancing vaginal response.

Medical devices sometimes used as sex toys

- Medical specula can be used to stretch a vagina or anus.
- Medical devices such as Wartenberg wheels and disposable sterile needles are also used in some BDSM practices.

Flesh-like materials used in sex toys

- Fleshlight is made of a soft, pliable, lifelike patented material.
- Silicone is soft and lifelike, warms up quickly to body temperature, non-porous therefore easy to clean (with mild soap and water, or boiled for sterilization).
- Cyberskin, also known under other brand names, is currently the closest emulation of real skin. This relatively new material is made of silicone and plastic. It is very porous, making it necessary to clean it very thoroughly (with antibacterial soap and water).
- Jelly is a cheaper, rubber-based material, quite porous, often translucent. It is sometimes scented to mask its strong rubber odor.
- Latex rubber is commonly used. It is cheaper, very porous, but might be allergenic to some people.

References and further reading

- Timothy Archibald. Sex Machines: Photographs and Interviews. Process, 2005. ISBN 0976082233.
- Karlyn Lotney. The Ultimate Guide to Strap-On Sex: A Complete Resource for Women and Men Cleis Press, 2000. ISBN 157344085X.

Copulation

:This article is about biological copulation in general. For sexual intercourse in humans and its societal implications, see sexual intercourse. sexual intercourse, Kenya. A lion couple may copulate up to 40 times a day during their "honeymoon" period]] Copulation is the union of the external sexual organs of two sexually reproducing animal organisms for insemination and for subsequent internal fertilization, which is fertilization of ova inside organisms. The two organisms may be of opposite sexes or hermaphroditic, as is the case with, for example, snails. Animals initially lived in oceans and reproduced through external fertilization through water. Certain animals started migrating from oceans to the land during the Late Ordovician epoch about 450 million years ago, so they started reproducing through internal fertilization. This maintained gametes in their originally liquid medium. One example of animals which reproduce through internal fertilization are insects. The female insects that copulate receive the spermatophores from the males' aedeagi through their ovipores. Many other animals reproduce sexually with external fertilization, such as the low vertebrates (catfish and most amphibians). Middle vertebrates (fish other than catfish, reptiles and most birds,) reproduce with internal fertilization through cloacal copulation (see also hemipenes), unlike higher vertebrates, which copulate vaginally. As for humans and their related hominids, the terms sexual intercourse, making love, having sex and coitus are usually used, and also, vulgarly, the term fucking, which is derived from the Proto-Germanic language. In a wider context, the term sexual intercourse may refer to a wider range of sexual activities than the term coitus, which only means vaginal intercourse. See human sexual behavior for a discussion of the broader sense of sexual intercourse.

External links

- [http://tidepool.st.usm.edu/crswr/103animalreproduction.html Introduction to Animal Reproduction]
- [http://www.pbs.org/wgbh/evolution/sex/advantage/ Advantages of Sexual Reproduction] Category:Biological reproduction Category:Sexuality ja:交尾

Fellatio

Oral sex#Fellatio

Category:Sexual acts

Category:Sexology

Yggdrasill

Yggdrasil (= "Ross des Schrecklichen" o.ä.; auch: Mimameidr, "Mutterbaum" ) ist in der germanischen Mythologie die riesenhafte immergrüne Weltesche (Weltenesche), unter deren Bild man sich das ganze Weltgebäude vorstellte.

Überblick

Nachdem die Asen den Ur-Riesen Ymir getötet haben, schaffen sie dem Mythos nach aus seinem Leichnam alle existierenden Dinge. Die Weltesche Yggdrasil ist der erste Baum, den sie pflanzen. Er ist der größte und prächtigste Baum der Erdengeschichte. Seine Zweige überschatten die neun Welten und wachsen über den Himmel. Auf der Spitze befindet sich der Jötun-Riese Hräswelgr in der Gestalt eines Adlers, der mit den Flügeln schlagend den Wind produziert. In dem Auge des Adlers befindet sich ein Habicht, der Vedrfölnir genannt wird. Er hat drei große Wurzeln, von denen eine nach Jötunheim, dem Land der Riesen, wächst, wo sich auch Mimirs Brunnen befindet. Die andere Wurzel führt in das nebelige Niflheim nahe der Quelle Hvergelmir, wo der Neid-Drache Nidhogg (Nidhöggr) an ihr nagt. Die dritte Wurzel findet sich in der Nähe von Asgard. Das Eichhörnchen Ratatöskr klettert immer an der dritten Wurzel hin und her und verbreitet dabei üble Nachrede vom Adler bis zum Neiddrachen. Vier Hirsche namens Dain, Dwalin, Dunneir und Durathor fressen die Knospen der Weltenesche ab. Die zwei Schlangen Goin und Moin, die von Grafwitnir (Grabeswolf) abstammen, nagen an den Wurzeln von Yggdrasil. Unter den Zweigen Yggdrasils halten die Götter Gericht. Am Fuße Yggdrassils findet sich die Quelle der Urd, an der die drei Nornen ihren Sitz haben, die drei Schicksalsgöttinen Urd, Werdandi und Skuld, die das Schicksal der Menschen und Götter weben, wobei Urd für die Vergangenheit, Werdandi für die Gegenwart und Skuld für die Zukunft steht. Wenn Yggdrasil zu beben (oder zu welken) beginnt, naht das Weltenende Ragnarök. Die Vorstellung dieser und ähnlicher Himmelsbäume hängt mit den in der Frühgeschichte vielfach auffindbaren Baumkulten zusammen, vgl. die Eiche im alten Griechenland und die Linde im deutschen Mittelalter. Auch Richard Wagner hat in seiner Operntetralogie "Der Ring des Nibelungen" das Bild von der Weltesche verwendet. Beim Untergang der Götterwelt in der "Götterdämmerung" bricht mit dem Untergang Walhalls auch die Weltesche.

Der Aufbau der drei Ebenen Yggdrasils

1. Himmel
- Burg Asgard: Heimat des bestimmenden Göttergeschlechts der Asen
- Säle Folkwang und Walhall: Ort, an den im Kampf gefallene Helden gelangen
- Palast Wingolf: Sitz der Asengöttinnen
- Bifröst, die Asgard und Midgard verbindende Regenbogenbrücke
- Wanaheim, Heimat des von den Asen besiegten Göttergeschlechts der Wanen
- Lichtelfenheim, Land der Lichtelfen 2. Erde
- Midgard, Heimat der Menschen
- Utgard, die fast unbewohnte Außenwelt des befriedeten Midgards
- Jötunheim, Heimat der Riesen
- Muspelheim, Heimat der Feuerriesen
- Schwarzelfenheim, Heimat der Zwerge 3. Unterwelt
- Hel, das Totenreich
- Niflheim, Heimat der Frostriesen

Abweichende Sichtweisen

Der schottische Gelehrte Eirikr Magnusson zeigte, dass Yggdrasil das Reittier des Odin gewesen sei und nicht der Baum selbst. Der eigentliche Weltenbaum habe "Yggdrasil's askr" geheißen.

Weblinks

- [http://www.sungaya.de/schwarz/germanen/yggdras.htm Germanische Mythologie: Yggdrasil] (Das Schwarze Netz)

Literatur

E. Magnusson, Odins Horse Yggdrasil, London, 1885
Dan Simmons, Hyperion, 1989
Dan Simmons, The Fall of Hyperion, 1991
Dan Simmons, Endymion, 1996
Dan Simmons, The Rise of Endymion, 1998
Siehe auch:
- Edda
- Yggdrasil Linux Kategorie:Germanische Mythologie Kategorie:Mythologischer Ort Kategorie:Pflanze (Mythologie) ja:ユグドラシル nb:Yggdrasil

darmowe statystyki rozst�py gu Links porady budowlane Ksi�garnia Internetowa

:: RELATED NEWS ::

Wikipedia:样板文字
本页被设计为不必要使用模板而又提供经常使用的文本的简单“复制粘贴”的版本。参见：:en:Wikipedia:Boilerplate text/test

删除通告

在条目的顶端放入此文字，将换成条目的标题。 ;来自Template:Vfd :参见：Wikipe

Template:类别

生活、艺术与文化

收藏 - 飲食 - 服裝 - 交通 - <

全球資訊網
:For the world's first web browser, see WorldWideWeb. WorldWideWeb 万维网（亦作“WWW”、“W3”或“World Wide Web”）is an information space in which the items of interest, referred to as resources, are identified by global identifiers called Uniform Resource Identifiers (URIs). The term is often mistakenly used as a synonym for the Internet
Read More...

中国石油天然气
中國石油天然氣股份有限公司是一家在香港交易所上市的工業公司。主要業務是原油和天然氣的勘探、開發和生產；原油和石油氣產品的煉製、運輸、儲存和營銷；化工產品的生產和銷售；天然氣的輸送、經營和銷售。公司在中華人民共和國註冊，主席為陳耕。中国移动通信集团公司是中华人民共和国一家基于 GSM 网络的移动通信运营商（现在的系统已经升级至2.5代技术，即 GPRS 网络），简称“中国移动”，在特定语境下简称为“移动”。公司成立与2000年

夕蚖科

分类

- 夕蚖亚科 Hesperentominae Tuxen,1963
- 夕蚖属 Hesperentomon Price,1960
- 青海夕蚖 H. chinghaiense Yin, 1982
- 滇夕蚖 H. dianicum Yin, Xie & Imadate, 1994
-

免费在线计算机词典
自由的在线计算机词典（Free On-line Dictionary of Computing） (FOLDOC)是在线的、可搜索的计算机主题百科全书词典。由Denis Howe在1985年建立，存放于伦敦帝国学院的主机。Howe 一直担任词典的主编，访问者可以针对条目提出添加和修正建议。词典吸收了其他的自由资源，例如Jargon Fil