The anatomy of the sex act. Sexual intercourse.



The anatomy of the sex act

The anatomy of the sex act

In the male, the penis shrinks back to its normal size; in the female, the vagina and other genital structures also return to their pre-excitement condition. It was proposed that this 'addictive behavior' be classified in DSM-5 as an impulsive—compulsive behavioral disorder. In the plateau stage , breathing becomes more rapid and the muscles continue to tense. Because women's arousal is harder to detect, and because women's orgasms aren't essential to reproduction, many people -- both men and women -- assumed that sex was something women put up with to have babies, not something that could be enjoyed. In some animals, such as sheep and migratory birds, copulation occurs only seasonally. In men, orgasms are under strong selective pressure as orgasms are coupled with ejaculation and thus contribute to male reproductive success. This gender disparity in the reliability of reaching orgasm during sexual intercourse has been thought to reflect evolutionary Lloyd, or social Hite, processes. Pressure from another person's body, depending on the sexual position, can also add to that pleasure, and while none of these spots has as many nerve endings as the clitoris, they aren't too shabby in that count either, which means there's plenty of opportunity for a woman to experience pleasure from vaginal intercourse alone. While there are women who reach orgasm as easily and routinely as do men, and some women who experience orgasm more easily and multiple times during a single session of sexual intercourse, this is not women's typical experience with orgasm. While there is evidence that female sexual arousal is rewarding Meisel, Camp and Robinson, , it is unclear whether humans, or possibly primates, Goldfoot, et al. Abstract In men and women sexual arousal culminates in orgasm, with female orgasm solely from sexual intercourse often regarded as a unique feature of human sexuality. Mating can occur only with entwined tails, thus placing the male and female vents together for insertion of the penis. Non-primate females copulate only when in estrus , [64] but sexual intercourse is possible at any time of the menstrual cycle for women. When a fertilized ovum reaches the uterus, it becomes implanted in the lining of the uterus the endometrium and a pregnancy begins. In addition, the Bartholin's glands at the vagina's entrance produce lubrication, but in both cases, that moisture is only provided for a few minutes, so additional lubrication may be needed to maintain comfort during sex.

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The anatomy of the sex act

In the male, the penis shrinks back to its normal size; in the female, the vagina and other genital structures also return to their pre-excitement condition. It was proposed that this 'addictive behavior' be classified in DSM-5 as an impulsive—compulsive behavioral disorder. In the plateau stage , breathing becomes more rapid and the muscles continue to tense. Because women's arousal is harder to detect, and because women's orgasms aren't essential to reproduction, many people -- both men and women -- assumed that sex was something women put up with to have babies, not something that could be enjoyed. In some animals, such as sheep and migratory birds, copulation occurs only seasonally. In men, orgasms are under strong selective pressure as orgasms are coupled with ejaculation and thus contribute to male reproductive success. This gender disparity in the reliability of reaching orgasm during sexual intercourse has been thought to reflect evolutionary Lloyd, or social Hite, processes. Pressure from another person's body, depending on the sexual position, can also add to that pleasure, and while none of these spots has as many nerve endings as the clitoris, they aren't too shabby in that count either, which means there's plenty of opportunity for a woman to experience pleasure from vaginal intercourse alone. While there are women who reach orgasm as easily and routinely as do men, and some women who experience orgasm more easily and multiple times during a single session of sexual intercourse, this is not women's typical experience with orgasm. While there is evidence that female sexual arousal is rewarding Meisel, Camp and Robinson, , it is unclear whether humans, or possibly primates, Goldfoot, et al. Abstract In men and women sexual arousal culminates in orgasm, with female orgasm solely from sexual intercourse often regarded as a unique feature of human sexuality. Mating can occur only with entwined tails, thus placing the male and female vents together for insertion of the penis. Non-primate females copulate only when in estrus , [64] but sexual intercourse is possible at any time of the menstrual cycle for women. When a fertilized ovum reaches the uterus, it becomes implanted in the lining of the uterus the endometrium and a pregnancy begins. In addition, the Bartholin's glands at the vagina's entrance produce lubrication, but in both cases, that moisture is only provided for a few minutes, so additional lubrication may be needed to maintain comfort during sex. The anatomy of the sex act

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2 Comments

  1. In the male, blood flows into the penis, causing it to become erect; in the female, the vaginal walls become moist, the inner part of the vagina becomes wider, and the clitoris enlarges.

  2. We first explore the history of this idea in the scientific and popular literature and then present statistical analysis of the two available historical datasets with data relevant to the proposed relationship Narjani, ; Landis, Landis, and Bowles, Studies of animals have shown that sexual arousal is rewarding even when sexual intercourse doesn't occur Meisel, Camp and Robinson, This behavior is characterized by a fixation on sexual intercourse and disinhibition.

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