Module 36 - 21:18 Sexual response cycle the four stages of...

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21:18 Sexual response cycle - the four stages of sexual responding described by Masters and Johnson- excitement, plateau, orgasm, resolution Refractory period - a resting period after orgasm, during which a man cannot achieve another orgasm Sexual disorder - a problem that consistently impairs sexual arousal or functioning Estrogen - a sex hormone, secreted in greater amounts by females than by males. In nonhuman female mammals, estrogen levels peak during ovulation, promoting sexual receptivity Testosterone - the most important of the male sex hormones. Both males and females have it, but the additional testosterone in males stimulates the growth of the male sex organs in the fetus and the development of the male sex characteristics during puberty Sexual orientation - an enduring sexual attraction toward members of either one’s own sex (homosexual orientation) or the other sex (heterosexual orientation) Sexual motivation is nature’s clever way of making people procreate, thus enabling our species’ survival. The pleasure of sex is our genes’ way of preserving and spreading themselves. Our human need to belong- to connect in close relationships- enhances our chance of leaving a genetic legacy. Alfred Kinsey did research and found….Most men and half of women have had premarital sex…most women and all men have masturbated…women who reported masturbating to orgasm before marriage seldom had difficulties experiencing orgasm after marriage. Objective 36-1 Kinsey’s study used people able and willing to display arousal and orgasm while being observed in a lab Their description of the sexual response cycle identified four stages Initial excrement phase- genital areas become engorged with blood, a woman’s vagina expands and secretes lubricant, and her breasts and nipples may enlarge Plateau phase- excitement peaks as breathing, pulse, and blood pressure rates continue to increase. The penis becomes fully engorged and some fluid, frequently containing enough live sperm to enable conception- may appear at its tip. Vaginal secretion continues to increase, the clitoris retracts, and orgasm feels imminent. Masters and Johnson observed muscle contractions all over the body during orgasm Further increases in breathing, pulse, and blood pressure rates A woman’s arousal and orgasm facilitate conception by helping propel semen from the penis, positioning the uterus to receive sperm, and drawing the sperm further inward. A woman’s orgasm therefore not only reinforces intercourse, which is essential to natural reproduction, but it also increases retention of deposited sperm
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After orgasm, the body gradually returns to its un-aroused state as the engorged genital blood vessels release accumulated blood- relatively quickly if orgasm has occurred, slowly otherwise ( like the tickle in your nose after a sneeze/ if you didn’t sneeze). During this resolution phase, the male enters a refractory period, lasting
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Module 36 - 21:18 Sexual response cycle the four stages of...

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