#MISSIONARY POSITION DEFINITION SYNONYM SERIES#

During ejaculation, which normally accompanies male orgasm, a series of muscular contractions delivers semen containing male gametes known as sperm cells or spermatozoa into the vault of the vagina. Penetration with the penis is also known as intromission, or by the Latin name immissio penis.Ī detailed description of the physiology of sexual arousal and orgasm can be found in the article Human sexual response cycle.Ĭoitus is the basic reproductive method of humans. In this way, they stimulate themselves and each other until orgasm and ejaculation are achieved. To engage in sexual intercourse, the erect penis is inserted into the vagina and one or both of the partners move their hips to move the penis backward and forward inside the vagina to cause friction, typically without fully removing the penis. 'Genital sex' as used here refers to genito-genital sex, among BDSM/fetish practitioners the term 'genital sex' can mean any sex involving the genitals including anal, oral, manual, etc., as opposed to those based on toys, costumes or fantasies.Ĭoitus may be preceded by foreplay, which leads to sexual arousal of the partners, resulting in the erection of the penis and natural lubrication of the vagina. See the terms frot for male-male genital sex and tribadism for female-female genital sex. See Human sexual behavior for a discussion of the broader sense of sexual intercourse and list of sexual positions for the wide variety of sexual activities that exist. The term sexual intercourse refers to a wider range of sexual activities than the term coitus, which only refers to male-female genital sex. Sexual intercourse, specifically coitus, is the human form of copulation. 1492) is an artist's interpretation of what happens inside the body during coitus by Leonardo da Vinci. For biological copulation in general, see copulation.Ĭoition of a Hemisected Man and Woman (c.

The term 'act of union' is used as a euphemism for sexual intercourse This article is about sexual intercourse in humans and its societal implications.

Missionary position definition synonym